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Old 09-24-2025, 11:17 PM
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So the guy going 9.0@150 mph is doing that with an L88 and under these engine rules?

Engine:

Must be factory correct for the year, model, and horsepower claimed. Dealer installed engines and dealer performed engine modifications are not allowed.

Casting numbers must be correct for the year and horsepower claimed including intake manifold, heads, and exhaust manifolds. Modifications are prohibited.

Blocks do not have to be "numbers-matching," but they must be the correct displacement. Overbores up to .070" are allowed. Stock cranks only. NO strokers!

Random P&G checks are possible. No lightweight cranks, connecting rods, or pistons allowed.

Aftermarket pistons are allowed, but piston rings can be no thinner than 1/16", 1/16", and 3/16" for top, second, and oil rings, respectively.

Gas porting of pistons NOT allowed. Metric and pressure-back-type rings (dykes, head land, etc.) are NOT allowed. Torque straps allowed.

Torque straps are allowed. No after-market blocks allowed. Compression may be increased to the greater of NHRA allowable stock blue print or 1.5 over advertised compression. NHRA
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