Quote:
Originally Posted by takid455
Figured it was something along the above.
Not to derail the thread too much, given the choice, would you run a 4.21 crank & have it offset ground to deck the pistons with 73/4 SD rods or 4.25 w/ new rods? SD Rods are acquired as with SRP forged pistons. Crank is needed. Application/ purpose - fun street. mid -upper 400hp
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4.21 stroke with SD rods will easily make 400 hp. Depending on the heads you have and going with right cam. On stock Pontiac rod Journal size. So no need to off set grind the crank. So if you already have the 4.21 stroke crank and SD rods and only looking for 400 hp, you can accomplish that like falling out of a tree.
As far as deck goes, it’s just a matter of having the block squared. Which should be no problem with a stock block. Also cam choice would depend on weather it’s a 4 speed car or automatic. With automatic convertor stall comes into play on cam choice, and the amount of slippage your willing to live with. So a cam that utilizes say 3500 stall still makes a nice street cruiser.