Type 1 VW Cylinder Head Options, Volkwagen Bug, Ghia, Thing Cylinder Heads

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VW Parts Catalog > Engine Parts > Cylinder Heads & Parts > Cylinder Heads, Type 1

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Valve Guide, 7 x 10 x 53mm (.2758 x .3962 x 2.1"), Silicon Bronze, EACH, 111-101-401B

Valve Guide, 7 x 10 x 53mm (.2758 x .3962 x 2.1"), Silicon Bronze, EACH, 111-101-401B

Price: $6.95

Valve Guide, 7 x 10 x 53mm (.2758 x .3962 x 2.1"), Silicon Bronze, EACH, 111-101-401B are strong and durable, lasting over 10x longer than cast iron guides. These also reduce friction and ensure oil retention. Micro finished and .0005" tolerance. Available in Standard and Over Sized versions. Over Size refers to how much bigger the OUTSIDE of the guide is, to fit into holes in the head that are wallowed out from guide removal and installation, in order to rebuild heads to stock or better than stock condition. We carry more over sized guides than most part stores, which can save you hundreds of dollars by being able to rebuild heads instead of replace them (if they are even available!).

Valve Guide, 8 x 12 x 61mm (.3152 x .4755 x 2.4"), Silicon Bronze, EACH, 113-101-401B

Valve Guide, 8 x 12 x 61mm (.3152 x .4755 x 2.4"), Silicon Bronze, EACH, 113-101-401B

Price: $6.95

Valve Guide, 8 x 12 x 61mm (.3152 x .4755 x 2.4"), Silicon Bronze, EACH, 113-101-401B are strong and durable, lasting over 10x longer than cast iron guides. These also reduce friction and ensure oil retention. Micro finished and .0005" tolerance. Available in Standard and Over Sized versions. Over Size refers to how much bigger the OUTSIDE of the guide is, to fit into holes in the head that are wallowed out from guide removal and installation, in order to rebuild heads to stock or better than stock condition. We carry more over sized guides than most part stores, which can save you hundreds of dollars by being able to rebuild heads instead of replace them (if they are even available!).

Valve Guide, 8 x 14 x 67mm (.3152 x .5540 x 2.625"), Silicon Bronze, 14mm OD 40hp Head, EACH

Valve Guide, 8 x 14 x 67mm (.3152 x .5540 x 2.625"), Silicon Bronze, 14mm OD 40hp Head, EACH

Price: $6.95

Valve Guide, 8 x 14 x 67mm (.3152 x .5540 x 2.625"), Silicon Bronze, 14mm OD 40hp Head, EACH are strong and durable, lasting over 10x longer than cast iron guides. These also reduce friction and ensure oil retention. Micro finished and .0005" tolerance. Available in Standard and Over Sized versions. Over Size refers to how much bigger the OUTSIDE of the guide is, to fit into holes in the head that are wallowed out from guide removal and installation, in order to rebuild heads to stock or better than stock condition. We carry more over sized guides than most part stores, which can save you hundreds of dollars by being able to rebuild heads instead of replace them (if they are even available!).

Valve Guide, 9 x 14 x 61mm (.3546 x .5540 x 2.400"), Silicon Bronze, 14mm OD 1600cc FI Head, EACH

Valve Guide, 9 x 14 x 61mm (.3546 x .5540 x 2.400"), Silicon Bronze, 14mm OD 1600cc FI Head, EACH

Price: $7.95

Valve Guide, 9 x 14 x 61mm (.3546 x .5540 x 2.400"), Silicon Bronze, 14mm OD 1600cc FI Head, EACH are strong and durable, lasting over 10x longer than cast iron guides. These also reduce friction and ensure oil retention. Micro finished and .0005" tolerance. Available in Standard and Over Sized versions. Over Size refers to how much bigger the OUTSIDE of the guide is, to fit into holes in the head that are wallowed out from guide removal and installation, in order to rebuild heads to stock or better than stock condition. We carry more over sized guides than most part stores, which can save you hundreds of dollars by being able to rebuild heads instead of replace them (if they are even available!).

Head Stud Nut and Washer Kit, Fits 10mm Head Studs, 16 Nuts and 16 Washers (Studs NOT INCLUDED)

Head Stud Nut and Washer Kit, Fits 10mm Head Studs, 16 Nuts and 16 Washers (Studs NOT INCLUDED)

Price: $8.95

Head Stud Nut and Washer Kit, Fits 10mm Head Studs, 16 Nuts and 16 Washers (Studs NOT INCLUDED) is used when your head studs are in decent shape, but your nuts and washers are lost or unusable. These have a 17mm hex on the outside, though a lot of guys use a 11/16" socket. This kit does NOT include the head studs themselves, just the nuts and washers.

Head Stud Nut and Washer Kit, Fits 8mm Head Studs, 16 Nuts and 16 Washers (Studs NOT INCLUDED)

Head Stud Nut and Washer Kit, Fits 8mm Head Studs, 16 Nuts and 16 Washers (Studs NOT INCLUDED)

Price: $8.95

Head Stud Nut and Washer Kit, Fits 8mm Head Studs, 16 Nuts and 16 Washers (Studs NOT INCLUDED) is used when your head studs are in decent shape, but your nuts and washers are lost or unusable. These have a 17mm hex on the outside, though a lot of guys use a 11/16" socket. This kit does NOT include the head studs themselves, just the nuts and washers.

Intake and Exhaust Stud Kit for Dual Port Cylinder Head, 8 X 38mm, 6 Pcs

Intake and Exhaust Stud Kit for Dual Port Cylinder Head, 8 X 38mm, 6 Pcs

Price: $11.95

Intake and Exhaust Stud Kit for Dual Port Cylinder Head, 6 Pcs includes (6) 8 x 38mm studs for one VW type 1 dual port cylinder head. This allows you to install or replace the 4 exhaust port studs, and the 2 dual port intake manifold studs, in one cylinder head.

Spark Plug Tap, VW Spark Plugs, 14 x 1.25mm

Spark Plug Tap, VW Spark Plugs, 14 x 1.25mm

Price: $13.95

This tap has the correct size and pitch to clean up 14mm VW Spark Plug threads that are buggerred up or filled with carbon. You can use this hundreds of times if you take care of it; don't just toss it in the toolbox where metal tools can damage the threads. This works on both 1/2" and 3/4" reach plug threads!

Adjustable Push Rod Tool (Push Rod Measuring Tool), Each

Adjustable Push Rod Tool (Push Rod Measuring Tool), EACH

Price: $24.95

Adjustable Push Rod Tool (Push Rod Measuring Tool), Each is used to determine the correct push rod length when setting up your rocker arm geometry. It fits ALL Aircooled VW engines, including Type 4s! It is threaded so you can change the push rod length to find out what length is best.

This is a MUST HAVE when it comes to setting rocker geometry. Ends have the correct radius for VWs (unlike cheaper tools), so what you measure is what you need!

14mm x 1.25mm Spark Plug Thread Repair Back Tap Tool Rental

14mm x 1.25mm Spark Plug Thread Repair Back Tap Tool Rental Fee

Rental Fee $25.00
$75 Tool Core charged AT TIME OF SHIPMENT (refunded upon return per terms of service)

14mm x 1.25mm Spark Plug Thread Repair Back Tap Tool Rental is a tool designed to repair 14 x 1.25mm Spark Plug Threads that are just messed up a little bit (not "stripped), with the engine IN THE CAR. This can really save your bacon! Using this tool sure beat R&Ring the engine and then pulling the cylinder heads off! This tool has the correct size and pitch to clean up VW Spark Plug threads that are buggerred up or filled with carbon, it cuts from the combustion chamber OUT, which carries the chips outwards, to keep them out of your engine.

Cylinder Head CC Measuring Kit, Type 1

Price: $29.95

ACCURATELY measure your cylinder head volume to determine the compression ratio of your VW engine. This kit includes discs for 85.5, 90.5/92, and 94mm bores, 60 cc syringe, and compression ratio charts with complete instructions so you can do this!

Time-Sert Tool Rental, 14 x 1.25mm (14mm Spark Plugs), Standard Repair, 4412

Time-Sert Tool Rental Fee, 14 x 1.25mm (14mm Spark Plugs), Standard Repair, 4412

Rental Fee $30.00
$100 Tool Core charged AT TIME OF SHIPMENT (refunded upon return per terms of service)

Time-Sert Tool Rental, 14 x 1.25mm (14mm Spark Plugs), Standard Repair, 4412 is the best thread repair kit available. If you have a super loose or super tight spark plug, you will probably need this tool soon! Time-Sert inserts are superior in every way to typical "Heli Coil" thread repair kit. This size is typically used to repair damaged spark plug threads in cylinder heads For this item we recommend Copper Repair Inserts, it is more consistent size-wise, and has better heat transfer, than the steel inserts.The rental period for this kit is: ONE MONTH.

Dual Valve Spring Guide Boss Cutting Tool Rental

Dual Valve Spring Guide Boss Cutting Tool Rental Fee

Rental Fee $30.00
$100 Tool Core charged AT TIME OF SHIPMENT (refunded upon return per terms of service)

Dual Valve Spring Guide Boss Cutting Tool Rental is a tool designed to cut down the valve guide bosses to make room for the inner springs on dual valve springs. You can use this in a drill press, mill, or even a hand drill if you are careful. Just make your cut so the valve spring surface is flat, then be sure to use a DUAL valve spring shim beneath the springs to protect the head from the ends of your valve springs. We include a 9mm shaft so you can also use this cutter on FI Type 1 and Type 4 exhaust guides!

One side of this tool cuts the boss for the inner spring on dual springs, the other side of it is used to trim the top of the valve guide down for more clearance to the retainer. If there is less than .060" clearance between the guide and retainer at full lift, you can bend push rods!

Copper Head Gasket, Type 1 Based Engines, Set of 4

Copper Head Gasket, Type 1 Based Engines, Set of 4

Price: $39.95

Copper head gaskets are the answer to deck height and head/cylinder sealing issues! These add to your engine's deck height, just like cylinder shims/spacers do, but these go between the cylinder and head. Between the 2 you'll have a LOT of adjustability!

Racing Intake Valve Guides, Type 1 Based Engines, Set of 4

Racing Intake Valve Guides, Type 1 Based Engines, Set of 4

Price: $44.95

Aluminum-Silicon-Bronze is the best valve guide material available today. These valve guides are strong and durable, lasting over 10x longer than cast iron guides. These also reduce friction and ensure oil retention. Micro finished and .0005" tolerance. Set of 4 guides.

Bench Model Engine Stand

Price: $44.95

Bench Model Engine Stand bolts to a workbench or table, and rotates a full 360 degrees. This bench mount engine stand is constructed of thick wall schedule 80 steel pipe. ACN Tip: You can also use this to hold your transaxle!

Note that you may have to grind the ears of the stand slightly to perfectly fit your engine case. Apparently they crack the whip on the guys making these, and they are rushing a bit.

How to Modify Volkswagen Beetle Chassis, Suspension, & Brakes for High Performance, by James Hale, 1-903706-99-8

How to Modify Volkswagen Beetle Chassis, Suspension, & Brakes for High Performance, by James Hale, 1-903706-99-8

Price: $49.95

How to Modify Volkswagen Beetle Chassis, Suspension, & Brakes for High Performance, by James Hale, 1-903706-99-8 is a GREAT BOOK! Doesn't cover any engine stuff, but is fantastic for brakes and suspension work, even though all the pics are in B & W.

Deck Height Measuring Tool, Deluxe

Price: $49.95

You can use dial indicators, feeler gauges or calipers, or even the calibrated screw that comes with it! Proper deck height is critical in preventing the piston from hitting valves, and in setting the proper compression ratio and quence for a good burn..

14mm x 1.25mm Spark Plug Thread Repair Back Tap Tool, USED, PURCHASE

Price: $65.00

Type 1 Stainless Steel Valves, Choose Size, Set of 4

Type 1 Stainless Steel Valves, Choose Size, Set of 4

Price: $79.95

Type 1 Stainless Steel Valves, Choose Size, Set of 4 are sold in a set of 4 for your volkswagen engine. These are compatible with unleaded gasoline.

Plain Racing Valve Covers, Type 1, PAIR

Price: $112.95

Heavy Duty Bolt-On Cast Aluminum Valvecovers withOUT "BUGPACK" cast into them. STRONG with enough clearance for any valvetrain! This pair of VW valvecovers comes complely polished with all needed hardware. These have cast in bosses for breather fittings!

EMPI C-Channel Bolt On Valve Covers, Type 1, Pair, 8852

EMPI C-Channel Bolt On Valve Covers, Type 1, PAIR, 00-8852-0

Price: $119.95

Heavy Duty Bolt-On Cast Aluminum Valve Covers with "EMPI" cast into them. STRONG with enough clearance for any valve train! This pair has polished ribs, and has all needed hardware. These have UNDRILLED cast in bosses for breather fittings too!

Super Duty Engine Stand, Bench Model

Price: $129.95

Bolts to a workbench or table, and rotates a full 360 degrees. This bench mount engine stand is the finest Bench Model Engine Stand you can have without making it yourself! You can also use this to hold your transaxle too! Your table is more likely to tip over or break than this engine stand will!

Engine Stand, Floor Model, Square Tube Style, 00-5007-0

Engine Stand, Floor Model, Square Tube Style, 00-5007-0

Price: $149.95

Engine Stand, Floor Model, Square Tube Style, 00-5007-0 rotates a full 360 degrees, and has steel casters for mobility. Knocks down when not in use to save space. You can also use this to hold your transaxle!

Intake Manifold Match Porting Labor, for CB 044 Series and Panchito Heads

Intake Manifold Match Porting Labor, for CB 044 Series and Panchito Heads

Price: $150.00

This service is not currently offered, sorry!

Intake Manifold Match Porting Labor, for CB 044 Series and Panchito Heads is the labor to match customer supplied intakes, OR intakes purchased from ACN, to any of the CB Cylinder heads. Match porting eliminates turbulence and increases efficiency and power at all RPMs.

Big-Sert (Time-Sert) Tool USED, 14 x 1.25mm (14mm Spark Plugs), Super-Duty Repair, 5141S PURCHASE

Big-Sert (Time-Sert) Tool USED, 14 x 1.25mm (14mm Spark Plugs), Super-Duty Repair, 5141S PURCHASE

Price: $150.00

Big-Sert (Time-Sert) Tool Rental, 14 x 1.25mm (14mm Spark Plugs), Super-Duty Repair, 5141S is the best thread repair kit available. This size is typically used to repair damaged spark plug threads that have already been "fixed" (Heli-coil!) but blew out again! If you have a super loose or super tight spark plug, you will probably need this tool soon! This tool cuts to a 18mm ID, which will repair MOST previously repaired inserts. If you are not sure you should measure yours! Time-Sert inserts are superior in every way to typical "Heli Coil" thread repair kit. This size is typically used to repair damaged spark plug threads in cylinder heads For this item we recommend Copper Repair Inserts, it is more consistent size-wise, and has better heat transfer, than the steel inserts.The rental period for this kit is: ONE MONTH.

Fuel Injection Dual Port Cylinder Head, 33 X 30mm Valves (1600cc Engines), 043-101-065

Fuel Injection Dual Port Cylinder Head, 33 X 30mm Valves (1600cc Engines), 043-101-065 (per EACH)

Price: $249.95

Fuel Injection Dual Port Cylinder Head, 33 X 30mm Valves (1600cc Engines), 043-101-065 is a stock replacement head for FI Mexican Engines, but it also works great on all DP engines. Uses 14mm x 3/4" reach Spark Plugs. This fits the 83 and 85.5mm stock bore. Sold per EACH. These use the 14mm x 3/4" Reach (long) spark plug.

Price is for ONE cylinder head.

Dual Port Cylinder Head, 35 X 32mm Valves, Chinese, EACH, 043-101-355

Dual Port Cylinder Head, 35 X 32mm Valves, Chinese, 043-101-355 (per Head/EACH)

Price: $269.95

Dual Port Cylinder Head, 35 X 32mm Valves, Chinese, EACH, 043-101-355 is a stock replacement head for DP engines. Sold per EACH. Spark Plugs are 14mm x 3/4" reach. Many used heads have a lot of issues that are expensive and difficult to repair, like loose seats, loose valve guides, or cracks in the combustion chamber.

OEM VW 35 x 32mm Dual Port Cylinder Head (Mexican or Brazilian Casting), EACH

OEM VW 35 x 32mm Dual Port Cylinder Head (MEXICAN or BRAZILIAN Casting), EACH

Price: $269.95

OEM VW 35 x 32mm Dual Port Cylinder Head (Mexican or Brazilian Casting), EACH are the best heads to use for 69-74mm stroke engines. Most other aftermarket heads have a BIG combustion chamber, which results in a CR which is too low. These keep your headaches to a minimum!

These heads use spark plugs with a 14 x 1/2" reach thread, same as when the car was brand new!

Dual Port Cylinder Head, 35 X 32mm Valves, Stepped Combustion Chamber, OE VW, EACH, 043-101-355OE

Dual Port Cylinder Head, 35 X 32mm Valves, Stepped Combustion Chamber, OE VW, 043-101-355OE (per Head/EACH)

Price: $289.95

Dual Port Cylinder Head, 35 X 32mm Valves, Stepped Combustion Chamber, OE VW, EACH, 043-101-355OE is a stock replacement head for DP engines which have the step in them! These are sold per EACH. Spark Plugs are 14mm x 3/4" reach. New heads replace worn and cracked heads! Many used heads have a lot of issues that are expensive and difficult to repair, like loose seats, loose valve guides, or cracks in the combustion chamber. This is a factory head which will get your compression and power back!

These heads will also work on Type 3 engines (Fastback, Squareback, and Notchback), AND FI Type 1 engines, since they have the Cylinder Heat Temp Boss in them.

Panchito 044 Dual Port Cylinder Head (85.5mm), 40 X 35mm Valves

Panchito 044 Dual Port Cylinder Head (85.5mm), 40 X 35mm Valves, per EACH

Price: $299.95

Panchito 044 Dual Port Cylinder Head (85.5mm) with 40 X 35mm Valves is a fantastic value for medium to larger engines up to around 160hp. Hi velocity ports provide high air speed for an extremely wide power band. This is a great head for VW bugs, busses and type 3s!

You can't go wrong with these on engines from 1800-2100cc, but they will also work well on medium tuned 1600s! This is a fantastic "ready to run" option for guys building their first "big" engine, being capable of ~160hp with everything else being up to snuff. We do have heads that outperform these, but for the price this is a fantastic choice. For a lot of folks this is the best head option value by far!

These use the 12mm x 3/4" Reach (long) spark plug.

Price is for ONE cylinder head.

L2 Single Port Cylinder Heads, COMPLETE, 1500 and 1600cc, (per Head/EACH)

L2 Single Port Cylinder Heads, COMPLETE, 1500 and 1600cc, (per Head/EACH)

Price: $359.95

L2 Single Port Cylinder Heads, COMPLETE, 1500 and 1600cc, (sold per Head/EACH) are not just your run-of-the-mill "Stock" Single Port replacement heads. These are an outstanding casting, and we disassemble every head, and give them a mild port job, then a top notch valve job, and re-assemble! Single port heads are excellent for busses, since they are tolerant of overheating (as close to bulletproof as you can get on an aircooled VW engine), and provide tremendous torque.

Each head comes are complete with springs, valves, guides, retainers, and keepers, ready to clean and bolt on. They come with a standard size combustion chamber (out of the box at 55cc), 35x32 Valves, and take stock replacement plugs, 14 x 1/2".

Price is for ONE head, so be sure to order TWO to do one full engine.

CB Performance 044 SPECIAL Dual Port Cylinder Head SINGLE SPRINGS, Stock Size, 90.5/92mm, and 94mm Bore, EACH

CB Performance 044 SPECIAL Dual Port Cylinder Head with SINGLE SPRINGS, EACH - Choose Bore (Stock, 90.5/92, or 94)

Price: $369.95

CB Performance 044 SPECIAL Dual Port Cylinder Head with SINGLE HI REV SPRINGS, and 40 x 35.5mm Valves - Choose your Bore Size!
Price is for ONE cylinder head, you need 2 of these to do one engine. Stronger, with extra strength designed to be cast into the head, and while they were at it they cast in big flowing ports. Comes with Chromoly Retainers, Bronze Silicon Racing Valve Guides, 12mm x 3/4" long reach spark plug bosses, double thick combustion chamber walls, tapered cooling fins and factory produced by an O.E.M supplier to Volkswagen. You can get Chinese "you be the beta tester" heads, or these proven 044s! Combustion Chambers are approximately 55cc.

CB Performance 044 MAGNUM Big Valve Dual Port Cylinder Head, Stock size, 90.5/92, and 94mm Bore, EACH

CB Performance 044 MAGNUM Big Valve Dual Port Cylinder Head, 90.5, 92, and 94mm Bore, EACH

Price: $369.95

CB Performance 044 MAGNUM Big Valve Dual Port Cylinder Head, Stock size, 90.5/92, and 94mm Bore, EACH WITH DUAL HIGH REV SPRINGS

Price is for ONE cylinder head, you need 2 of these to do one engine. Stronger, with extra strength designed to be cast into the head, and while they were at it they cast in big flowing ports. Comes with Chromoly Retainers, Bronze Silicon Racing Valve Guides, 12mm x 3/4" long reach spark plug bosses, double thick combustion chamber walls, tapered cooling fins and factory produced by an O.E.M supplier to Volkswagen. You can get Chinese "you be the beta tester" heads, or these proven 044s! Combustion Chambers are approximately 55cc.

Panchito 044 Dual Port Cylinder Head (88TW/90.5/92mm or 94mm Bore), 40 X 35mm Valves, per EACH

Panchito 044 Dual Port Cylinder Head (88TW/90.5/92mm or 94mm Bore), 40 X 35mm Valves, per EACH

Price: $389.95

Panchito 044 Dual Port Cylinder Head (88TW/90.5/92mm or 94mm Bore), 40 X 35mm Valves, per EACH is a fantastic value for medium to larger engines up to around 160hp. Hi velocity ports provide high air speed for an extremely wide power band. This is a great head for VW bugs, busses and type 3s!

These use the 12mm x 3/4" Reach (long) spark plug.

Price is for ONE cylinder head.

Fuel Injection Dual Port Cylinder Head, 35 X 32mm Valves, Chinese, 043-101-355CK

Fuel Injection Dual Port Cylinder Head, 35 X 32mm Valves, Chinese, 043-101-355CK (per HEAD/each)

Price: $399.95

Fuel Injection Dual Port Cylinder Head, 35 X 32mm Valves, Chinese, 043-101-355CK is a stock replacement head DP engines. Sold per EACH. Spark Plugs are 14mm x 3/4" reach. Many used heads have a lot of issues that are expensive and difficult to repair, like loose seats, loose valve guides, or cracks in the combustion chamber.

VW Engine Case and Cylinder Head Boring and Flycutting Tool, EACH

VW Engine Case and Cylinder Head Boring and Flycutting Tool, EACH

Price: $399.95

VW Engine Case and Cylinder Head Boring and Flycutting Tool, EACH lets you open up the cylinder windows in your case and heads! You can also flycut the heads for more compression. This tool comes with instructions and hardware. You can use this tool with a drill press.

This tool is high quality, and built for repeated use.

We do NOT have instructions other than what is supplied by the manufacturer for this particular product!

CB Performance 044 MAGNUM Big Valve Dual Port Cylinder Head, 90.5, 92, and 94mm Bore, EACH

CB Performance 044 MAG-PLUS Big Valve Dual Port Cylinder Head, 90.5, 92, and 94mm Bore, EACH

Price: $399.95

CB Performance 044 MAGNUM Big Valve (42 x 37.5mm) Dual Port Cylinder Head, 90.5, 92, and 94mm Bore, EACH

Price is for ONE cylinder head, you need 2 of these to do one engine. Stronger, with extra strength designed to be cast into the head, and while they were at it they cast in big flowing ports. Top it off with your choice of HD Single or Dual Valve Springs, but all come with Chromoly Retainers, Bronze Silicon Racing Valve Guides, 12mm x 3/4" long reach spark plug bosses, double thick combustion chamber walls, tapered cooling fins and factory produced by an O.E.M supplier to Volkswagen. You can get Chinese "you be the beta tester" heads, or these proven 044s! Combustion Chambers are approximately 55cc.

Dual Port Cylinder Heads, 35 x 32mm Valves, 500-400 (per PAIR)

Dual Port Cylinder Head, 35 x 32mm Valves, 500-400 (per PAIR)

Price: $489.95

Dual Port Cylinder Heads, 35 x 32mm Valves, 500-400 (per PAIR) are a GREAT deal on stock sized valve heads for that engine project you are going to do! These are complete with Valves, HD Single Springs, Keepers, Retainers, bolt them on! These heads have combustion chambers of approx 59cc without modification

Price is for a PAIR of matching cylinder heads. These heads use 14mm x 3/4" spark plugs.

These are equipped with HD Springs, so they are perfect for cams up to around 290 advertised duration (Engle 110, SCAT C-35, etc). Bigger cams than this will need Dual Springs. These heads are a good choice if you are building a mild engine with a non-stock cam, since you would need to buy new HD Springs and Chromoly Retainers, removing the stock stuff. Why pay for stuff you are going to take off an not use? Use these instead, they have that already! Another beautiful feature of these heads is they do NOT have the #)*($&#)*& step in the combustion chamber, which causes NOTHING BUT PROBLEMS!

Dual Port Cylinder Heads, 40 x 35.5mm Valves, 500-420 (per PAIR)

Dual Port Cylinder Heads, 40 x 35.5mm Valves, 500-420 (per PAIR)

Price: $539.95

Dual Port Cylinder Heads, 40 x 35.5mm Valves, 500-420 (per PAIR) are a GREAT deal on a pair of Big Valve heads for that engine project you are going to do! These are complete with Valves, Guides, Springs, Keepers, Retainers, bolt them on! Chambers "out of the box" are APPROXIMATELY 59cc. If you want a different chamber volume, please choose the "CC" option.

Price is for a PAIR of cylinder heads to do one engine. These heads come unported, they can be used as is, or ported for more airflow and power.

Single Port Cylinder Heads, COMPLETE, 1500 and 1600cc, PAIR

Single Port Cylinder Heads, COMPLETE, 1500 and 1600cc, PAIR

Price: $599.95

Single Port Cylinder Heads, COMPLETE, 1500 and 1600cc, PAIR are a PAIR of stock SP replacement heads. These are an outstanding casting, assembled/complete head. SP Heads are excellent for busses, they are tolerant of overheating (as close to bulletproof as you can get on an aircooled VW engine), and provide tremendous torque.

The heads are complete with springs, valves, guides, retainers, and keepers, ready to clean and bolt on. They come with a standard size combustion chamber, 35x32 Valves, and take stock replacement plugs, 14 x 1/2". The out of the box chamber size is 55cc.

ACN Stocker Plus Dual Port Cylinder Heads, (L3 heads) 35 X 32mm Valves, PAIR

ACN Stocker Plus Dual Port Cylinder Heads, (L3 heads) 35 X 32mm Valves, PAIR

Price: $639.95

ACN Stocker Plus Dual Port Cylinder Heads, (L3 heads) 35 X 32mm Valves, PAIR are made from brand new castings! These are a nice upgrade from stock heads, with a flow increase of 15-20%. Consider these a "Super Stock" cylinder head for your car! We had had customers that dynoed engines with these heads over 130hp! They are an excellent choice for enthusiasts that want more than "stock", with flow increase of 15-20% compared to a stock DP head. Aircooled.Net has sold our L3s for over a decade, and these are IMPROVED, now being based on an imported casting, with larger ports than stock. Heads are equipped with 14mm x 3/4" Reach plug threads (which prevents plugs stripping out, like on the 1/2" reach heads!), Hi Chrome Valve Seats, Silicone Bronze Valve Guides, HD Valve Springs, Hardened Keepers and Chromoly Retainers, then finished with a top notch valve job. Out of the box these have ~59cc chambers in the all bore sizes, from the stock 85.5mm all the way up to 94mm.

If you would like a larger or smaller chamber, we can provide this for an additional cost to get your compression ratio perfect!

Budget Big Valve Dual Port Cylinder Head, 40 X 35mm Valves, 92/90.5mm Bore, PAIR

Budget Big Valve Dual Port Cylinder Head, 40 X 35mm Valves, 92/90.5mm Bore, PAIR

Price: $769.95

Budget Big Valve Dual Port Cylinder Head, 40 X 35mm Valves, 92/90.5mm Bore, PAIR are a GREAT deal on a pair of big valve heads for that engine project you are going to do! These are complete with valves, springs, keepers, retainers, bolt them on!

Price is for TWO cylinder heads to do one engine.

Budget Big Valve Dual Port Cylinder Head, 40 X 35mm Valves, 94mm Bore, PAIR

Budget Big Valve Dual Port Cylinder Head, 40 X 35mm Valves, 94mm Bore, PAIR

Price: $769.95

Budget Big Valve Dual Port Cylinder Head, 40 X 35mm Valves, 94mm Bore, PAIR are a GREAT deal on a pair of big valve heads for that engine project you are going to do! These are complete with valves, springs, keepers, retainers, bolt them on!

Price is for TWO cylinder heads to do one engine.

CB Performance 044 Super Mag CNC Round Port Cylinder Heads, 40 X 35mm Valves, 85.5, 92, and 94mm Bore, PAIR

CB Performance 044 SUPER MAG CNC Round Port Cylinder Heads, 40 X 35.5mm Valves, 85.5, 92, and 94mm Bore, PAIR

Price: $1,029.95

CB Performance 044 Super Mag CNC Round Port Cylinder Heads, 40 X 35mm Valves, 85.5, 92, and 94mm Bore, PAIR are designed for small to medium size engines, and are based on the same high quality 044 Castings as other 044s! CNC porting is perfect from head to head!

CB Performance 044 Ultra Mag Plus CNC Cylinder Heads, 42/44X37.5mm Valves, 92 and 94mm Bore, PAIR

CB Performance 044 Ultra Mag Plus CNC Cylinder Heads, 42/44X37.5mm Valves, 92 and 94mm Bore, PAIR

Price: $1,069.95

CB Performance 044 Ultra Mag Plus CNC Cylinder Heads, 92 and 94mm Bore, PAIR are designed for 2000cc and larger engines, and are based on the same high quality 044 Castings as other 044s! CNC porting is perfect from head to head! These heads are capable of 190+ HP in the right engines!

CB Performance 044 Super Pro Cylinder Heads, 45 X 37.5mm Valves, 94mm Bore ONLY, PAIR

CB Performance 044 SUPER PRO CNC Cylinder Heads, 45 X 37.5mm Valves, 94mm Bore ONLY, PAIR

Price: $1,089.95

CB Performance 044 Super Pro Cylinder Heads, 45 X 37.5mm Valves, (Available in 94mm Bore ONLY), PAIR are CB's most modern version of the CNC ported cylinder head, focusing on air speed in the ports instead of pure flow bench #s! Higher air speed means more power! This version, for example, has a 6cc smaller intake port volume than then it's predecessor, the CB Performance 044 Wedge Port.


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