Mopar 440 racers - time to legalize that shortblock!

RocketBlock · 11-29-2007, 08:34 PM

Just heard that NHRA tech is no longer going to look the other way on the engines built with the incorrect short-deck B block, must use correct RB raised block as dictated in the rulebook ("crossbreeding of parts prohibited"). Applies to other makes but it appears the problem is primarily with the 400 block being used for 440 applications. Also, 440 cranks are turned down significantly to fit the 400 B block mains. Compression height of the pistons will also change significantly.

11-29-2007, 08:34 PM	#1
RocketBlock Junior Member Join Date: Jan 2003 Posts: 57 Likes: 0 Liked 0 Times in 0 Posts	Mopar 440 racers - time to legalize that shortblock! Just heard that NHRA tech is no longer going to look the other way on the engines built with the incorrect short-deck B block, must use correct RB raised block as dictated in the rulebook ("crossbreeding of parts prohibited"). Applies to other makes but it appears the problem is primarily with the 400 block being used for 440 applications. Also, 440 cranks are turned down significantly to fit the 400 B block mains. Compression height of the pistons will also change significantly.