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  ACN Wheelie King Dual Port Cylinder Heads, (L7 heads) 44 X 37.5mm Valves, PAIR
ACN Wheelie King Dual Port Cylinder Heads, (L7 heads) 44 X 37.5mm Valves, PAIR


 
ACN Wheelie King Dual Port Cylinder Heads, (L7 heads) 44 X 37.5mm Valves, PAIR are based on a brand new Revmaster 049 Aircraft Aluminum Head casting! We have seen output in the 240hp range with perfect tunes, but normally these are good for 210-220 HP. Must have 1 3/4" or larger exhaust! Aircooled.Net has sold our L7 heads for over a decade, and these are now based on an imported casting.

These heads feature a recently developed new head casting, featuring 12mm x 3/4" Reach plugs (which prevents cracks at the plug threads), Hi Chrome Valve Seats, 44 x 37.5mm Stainless Steel Valves, Silicone Bronze Valve Guides, HD Dual Valve Springs, Chromoly Keepers and Retainers, then finished with a top notch valve job.

You absolutely MUST have an exhaust in the 1 3/4 or 1 7/8" primary size to utilize the flow capability of these heads! Failure to heed this advice can result in difficult (IMPOSSIBLE) tuning issues, and likely cylinder head overheating. It also won't make the power you want!

ACN L7s flow over 220cfm on the intakes at .600" lift, and almost 210cfm at .500" Lift! This creates an incredibly wide and strong power band and torque curve that is hard to comprehend! In fact, these L7s are a top shelf cylinder head, laying waste to most "High Performance" cylinder heads available elsewhere. You absolutely MUST have the cam, exhaust, and intake to go along with them. In fact, this head used to cost around $1200/pair, but the CNC porting and chamber work has dropped the price to where it is now!

Dual 2bbls with venturis in the 42-45mm range are best in your carburetion of choice, dual 48s will work best (DRLA, IDF, or IDA)! At the time of order tell us the chamber cc's you desire and we'll get it done!

With these heads we recommend valve lifts in the .550-.600" range, which is where they will perform at their best.

Price: $899.95

PN: L7-HEADS-PAIR


Specify CC:
[adds $100.00] optional
Choose Bore Size

  
Custom Made Item Agreement

I AGREE TO THE MADE TO ORDER TERMS THAT APPLY TO THIS ITEM
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 Wheelie King Dual Port Cylinder Heads, (L7 heads) 44 X 37.5mm Valves, PAIR are based on a brand new Revmaster 049 Aircraft Aluminum Head casting! We have seen output in the 240hp range with perfect tunes, but normally these are good for 210-220 HP. Must have 1 3/4" or larger exhaust! Aircooled.Net has sold our L7 heads for over a decade, and these are now based on an imported casting.
Kit Contents:
Intake flow a @28 inches of water
Lift-CFM
.050-30.0
.100-57.9
.150-87.5
.200-113.5
.250-135.5
.300-156.2
.350-173.3
.400 -187.4
.450-198.6
.500-207.6
.550-214.0
.600-219.0
.650-226.0

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PLEASE NOTE: Product availability can vary and short-term backorders are common. Immediate shipment of requested products is NOT guaranteed. Orders are processed in the order that they are received and order fulfillment time varies. Product Images are representative only. Actual product may differ in appearance. Although every effort has been made to provide accurate pricing and product technical and vehicle application information, THIS CATALOG MAY CONTAIN ERRORS (typographical, photographic, or informational). Product prices are subject to change without obligation. In most cases we are able to honor advertised price, but in the RARE case a substantial price increase occurs, you would be notified and given the option to cancel. All information provided by Aircooled.Net (via website or email) is for USE AT YOUR OWN RISK. All products purchased should be checked and installed by a qualified mechanic. Since Aircooled.Net has no control over product installation, we will not be held liable for any consequential costs or damages associated with products purchased.