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VW Parts Catalog > Engine Parts > ACN Stocker Plus Dual Port Cylinder Heads, (L3 heads) 35 X 32mm Valves, PAIR Photos show a stock 85.5mm bore size with the 59cc combustion chamber WITHOUT the "Step" in it! Combustion efficiency is far better without a step in the combustion chamber! Photos show a single head, but these heads are sold PER PAIR!!!   Additional Photos 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! They are an excellent choice for enthusiasts that want more than "stock", with flow increase of 15-20% compared to a stock DP head. We had had customers that dynoed engines with these heads over 130hp! 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! These heads are great if you choose to use stock heater boxes too, since using larger exhaust valves with stock heater boxes is a BAD IDEA! ACN L3s flow about 130cfm on the intakes at .450" lift (28" of water); a great bargain for power. Combustion Chambers are approximately 59cc, and these chambers do NOT have the "Step" present, which makes your calculations and assembly easier! With these heads we recommend valve lifts in the .400-.450" range, more than this and you need more cylinder head, or less cam! These heads are good for around 90hp and 115lb/ft of torque, which is great for "mild" applications, and it is achieved with true BOLT ON (rather than Master Mechanic) skills in your driveway or table top! You can use a stock carb and exhaust, or use a mild header along with dual 1bbls or even dual 2bbl carbs (DLRAs or IDFs). Price: $499.95 PN: L3-HEADS-PAIR Choose Head Bore Size Head Bore Size: 85.5mm, 87 and 88mm Slip Ins (Stock Bore Size) 88mm MAHLE (Machine In Thick Wall) Type 1 [Add $75.00] 88mm AA (Machine In Thick Wall) Type 1 [Add $75.00] 90.5mm Machine In [Add $75.00] 92mm Machine In [Add $75.00] 94mm Machine In [Add $75.00] Specify your Head Combustion Chamber Size Specify CC: [adds $70.00 for PAIR of heads] optional Custom Made Item Agreement I AGREE TO THE MADE TO ORDER TERMS THAT APPLY TO THIS ITEM MADE TO ORDER TERMS and CONDITIONS: This item is made-to-order and cannot be canceled once manufacture has been initiated (which is typically within 24 hours of order submission). Orders for this item are non-cancellable, non-returnable, and non-refundable. Item IS covered by warranty against verifiable defect for 90 days from date of shipment. Please double check your selection and/or specification to be certain you are ordering what you need! Qty: Product Overview   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! Average Customer Review: 5 of 5 Total Reviews: 2 Add your review too! Related Items... VW Sedan & Bus Street Header, 1966-74 1300-1600cc Based Engines Price: $159.95 NGK BP6ET Spark Plug (per EACH), 14 x 3/4" Reach Threads, 13/16" Socket Price: $5.00 Super Stock Intake Manifold, Dual Port Center Section, Fits 30, 30/31, and 34 PICT Carburetors Price: $84.95 88mm x 69-74mm Hypereutectic Slip-In Bottom and Machine in Top Piston & Cylinder Set, AA Brand, Type 1, VW8800T1K Price: $189.95 Engine Gasket Set (GERMAN) WITH Flywheel Seal, for 1300/1500/1600cc Engines Price: $24.95 CB Performance Dual IDF Weber Carburetor Kits, Choose from Type 1, Type 3, and Type 4 Engines Price: $799.95 NGK BP5EY Spark Plug (per EACH), 14 x 3/4" Reach Threads, 13/16" Socket Price: $5.00 DPR Chrome Vanadium 12V 200mm Lightened Flywheel Price: $179.95   3 of 3 people found the following review helpful:   Runs cooler + MPG increase! April 21, 2016 Reviewer: Brian C from Dallas, TX United States   I don't normally write reviews but these are worth writing about.  I put these on my stock 1600.  Before my head temps would be between 400-425F all the time, now they run between 300-340F... nearly 100F cooler!  Could have partially been poor tuning but still way cooler, I get better mileage, and probably a 2 to 3 horsepower increase.  I have almost 15000 miles on them and I couldn't be happier.  I'd buy them again in a heartbeat. Was this review helpful to you?   4 of 4 people found the following review helpful:   Sweet heads February 26, 2013 Reviewer: Rick H from Blackshear, GA United States   I was reluctant to buy these heads.  I worried about how the rest of the engine- tin, exhaust, etc., would fit.  After asking John a few questions I decided to go for it.  I'm very glad I did.  Everything fits perfectly, I can tell a difference in acceleration, gas mileage, and best of all, cooler engine temps. Thanks for the help and excellent product John! Was this review helpful to you?

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