[Mike Schwartz]

Originally Posted by Mike Schwartz

Are there any other differences between an NHRA Stock car and a IHRA Crate Motor Stock car, other than the engine?

Originally Posted by Michael K

One difference is mini tubs and 10.5 inch tires.

Originally Posted by Myron Piatek

You're also allowed minor suspension mods for tire clearance (i.e.: 3/4" offset kit for leaf springs on Mopars.) and you can have a trunk mounted battery without a matching one up front. There were originally a few cars built with springs moved into frame rails, but they were getting away from that as too radical. They also revised other rules shortly after inception that originaly allowed other brand rear ends (i.e: Ford 9" in place of 8 3/4" - sounds like FS!) and tightened up on hood scoop rules to keeping original hole specs & sealed/unsealed configurations, like with "regular" Stock rules. They also allowed replacement aluminum radiators before NHRA did.

Originally Posted by killintime6968

Mini tubed cars are not stock , 10.5 tire cars are not stock and crate motor cars are not stock. The first two can fit super stock and crate motors can go play in the brackets.

What % of cars, that were running Crate Motor classes recently, had taken full advantage of the rules? What % were otherwise NHRA-legal cars that just had an engine swap?

If you put a NHRA-legal 9" tire on a car that still had it's IHRA-allowed mini-tubs and relocated springs, would it have an advantage over a NHRA Stocker?

Is it correct that you can build certain NHRA-legal Stocker engines almost entirely out of aftermarket parts, aside from the intake manifold? (approved replacement block, oil pan, crankshaft, rods, pistons, heads, carburetor/EFI, & ignition, plus all the traditionally replaced components like headers, cam, valve covers, rocker arms etc.).