12-05-2007, 05:03 AM
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Senior Club Cobra Member
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Join Date: Jun 2005
Location: DeLand, FL,
fl
Cobra Make, Engine: ERA FIA #2117; 331 stroker; TKO600
Posts: 588
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Not Ranked
Stroking the motor and staying with the same GT40 heads is a total waste of time. The $$ would be better spent by REPLACING the heads with a set of AFR 185's (around $1400), and you will be adding a LOT of hp and torque, and not stroking the motor. You will then have a much more powerful 351. The GT 40 heads were standard issue on 302's, and the 302 is made a lot more powerful by upgrading to something like an AFR 165. Talk to an engine builder (ie Keith Craft) he will tell you the best routes to take and they also sell the parts to do it. My 331 with AFR 165's dynod 436 hp at 6000 rpm with 400 lbs of torque.
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