i have a 1991 z28. what sbc blocks will work with the current tpi setup? for example i have a stripped block from a 74 nova in my garage that i would love to build up but will it work with the tpi and line up at the motor mounts?

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91 Z28, 64k mi.,k+ns, chip, flows, fresh black paint, gts blackouts all around, 18" chrome irocs, kybs, eiback 1" springs, global west sfcs, nu stereo/sub/amp, red dome/guage lights, and plenty more to come.

 

The issues with the block are: the type of rear main seal, which will determine the type of flexplate/flywheel you use; which side the dipstick is on (not a problem if you use headers); perhaps the starter type, especially with 400's; and whether a factory-type roller cam will work or not. However, none of these factors influence whether or not you can use TPI - that's the heads. All of them can be worked around with minimal to no hassle - typially meaning they'll be less expensive than they would be with your '91 (except the starter, or if you want a roller cam).

Motor mounts will be completely, entirely identical, unless you have a '55-'57 265 or 283 block. Nope, you've got a '74 - no problem!

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82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R. 2.93 limited slip. Cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 w/LB9 block, ZZ3 cam and intake, WP 305 heads ported & polished, TBD headers & hi-flow cat).
57 Bel Air, my 1st car. 0.030 over 396, Weiand Action+, Edelbrock 1901 Q-Jet, Jacobs Omnipack, 1-3/4" headers, TH400 w/TCI Sat Night Special conv & shift kit, 3.08 10-bolt, AMSOIL syn lubes bumper-to-bumper. Best 15.1 @ 5800' Bandimere. Daily driver while Camaro was being put together.