Quote:
Originally Posted by Jesse Kershaw
The 2012 Cobra Jet engine is very similar to the stock Mustang GT engine combination. The most notable difference is the pistons that add compression and the cams.
The intent of the Cobra Jet's with the 4.6L 3v and the 5.0L was to make it affordable for racers to build street cars into competitive NHRA Stockers. Even the 3v cylinder heads CNC ported are less money than getting a "valve job" on many vintage set of heads.
NHRA tech has told me that in general they will accept a replacement piston that is slightly less compression BUT that it must be submitted as an offical replacement piston. A racer or engine builder can submit a stock 5.0L or 3v piston, or an Aluminator piston as a replacement for the Cobra Jet piston and ask for it to be approved.
The 5.0L and 4.6L Cobra Jet models are a great bargain for building a Stocker, especially starting from a street car.
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Jesse:
First, I would like to thank Ford for their support for the Stock Eliminator class.
Does Ford have any plans to submit to NHRA the specs for the 2011-2012 3.7 V6 Mustangs as well as the 5.0 Coyote GTs for Stock ?
From a marketing standpoint, I can see it helping to sell more new Mustangs. (both models)
Also, can someone at Ford Racing submit a factory 5.0 Coyote GT piston for approval to NHRA ? It would sure help the racers.