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Old 12-13-2011, 10:27 PM   #1
442OLDS
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Default Re: IHRA Engine Blueprint Specs ????

Quote:
Originally Posted by Chris1529 View Post
Since NHRA publishes a list of acceptable stock/superstock replacement rods, I figure most professional engine builders go with one that is on the list for a given combination.

If someone builds two identical engines, with the exception of stock legal rods in one, and superstock legal rods in the other, how much performance gain could be expected?
Its not just the rods,its also the pistons:

Only the top (combustion chamber side) of the piston has to "LOOK" correct when viewed from an assembled short block. The dish/dome still have to measure correct. They dont care what it is like below the deck (moved rings, thinner ring pack, lite pins, lite pistons, valve relief location and depth, etc.).


Performance gain?

I would think the IHRA car could beat the NHRA car in a heads up!
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