Sportscar Vinatge Racing Rules are as follows:
Detomaso 1967-1988351 bore and stroke 4.0x 3.5 heads and block cast iron. Correct displacement is required. Engines must be of the correct type, size & design originally fitted. Over bore.047,
Modern aftermarket blocks and heads are prohibited unless they are indential to the originals.
Under the Detomaso Pantera Homologation the Group 4 cars and all their alterations are legal for example webers, CV joints, rol cage,plexiglass, Upgraded brakes, headers, high dome pistons, flairs, dual disc clutch and aluminum flywheel.
Why any other block is ban is because a Pantera never came with and High Perf block or any other engine .
Ron
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