LS6 Coupe

[copo69]

I've got a '69 Biscayne, Black, 335hp 427 auto originally, and raced in Stock class since day one. Original motor is long gone and have been thinking about 427/425 and going pure stock racing or returning it as a stock appearing race car. I'm also interested in 6 bolt converters and if they can be obtained remanufactured. Also pretty hard to check the guts of a converter, any fudging going on? Also, is it permissable to use superceded castings like NHRA & IHRA alow in stock classes? This would be cheaper and also retain the original dated stuff for keepers instead of sacrificing to the drag strip.

[Chevy454]

A note on the converter. I've tried both ways (more and less stall), and the factory converter actually does seem to be about right...on the skinny tires. On stickies it's a different story. I don't know if Pete has done any experimenting with stall speed, but we had trans troubles the past couple of years, so had several opportunities to try different converters. Too tight, and it's lazy out of the hole...too loose, and it simply blows the tires away. So, Petey, is any of this close?

As for the superceded castings, you're supposed to have the right parts per your application (or supposed to anyway). Remember, if you don't certify, the 99% of the tech is done on the honesty policy, unless you are one of the unfortunate ones that gets to pull a valve cover. Some people stretch the rules, others don't.

Whatever you decide, built it for Pure Stock and come play with us!