From the link on Josh's post to yellow bullet, this is an excerpt from the NHRA rule book (where SFI containment is required). It could be used as a guide for other applications.
Quote:
Lower Engine Containment Device must cover the sides of the block and pan up to within one inch of the head mating surface and extend to within 1 1/2 inches of the front and rear of the cylinder case area
Are you going to sell them to Moparts.com members with BB Chrysler engines? I am considering one as I see the hand writing on the wall for "fast" bracket cars in the future (2012+)
