i just got a 70 chevelle with the following drive train

. It has a Rebuilt 1970 LS6 454 Engine(With Less Than 1000 Miles On Rebuild), Engine is bored OVER to a 471 CI, Steel Crankshaft, TRW Pistons, 3/8 Push Rods, Crane Aluminum Roller Rockers, Triple Valve Springs, Double Timing Chain, 750 4 Barrel Holley Carb, 2,200 Stall Converter, B&M Street/Strip Transmission, B&M Shifter, 456 Gear, Spool, Moser Axles, New Front Suspension, New Disc Brakes


one of the last things i need to to is headers /exhaust tht the prevoius owner didnt do..

i have done alot fo research recent on bbc headers...

option 1 is 1 3/4 inch headers
option 2 is 17/8 inch headers
option 3 is 2 inch headers
option 3 is 2 1/8 in headers..

im def want one the are ither cermaic coated or soething like at.. im leaning towrd jsut upping the for the 2 inch but want to know how hard they are to install??


as fpr the rest fo the exhaust i 90% convided to go witht eh flomaster 3 inch kit with 30 series mufflers... however open to options but really wnat 3 inch ...

if you could give me some direction that would be great..

You are really opening a can of worms with the exhaust question so I'll get it started - I have the flowmaster 3 inch kit with the 30 series mufflers. I really like it. I removed the dynomax mufflers, 3 inch pipes with dumps system that the car came to me with. If I would make any changes it would probably to try a couple of the Magnaflows with my system. Good Luck!

ok well thanks for the heads up... i will check into the magnaflows stuff..

I'd run a set of 1-3/4" x 40" primaries with a 2-3/4" collector with an x-pipe about 28" from the collector entry if this is a street car. 4.56 gears seems to be a bit steep for that application.

ya prob mostly a street car... and yes those gears are goign to go eventually... it was setup and being built to drag... but im turning it for more street use...

thanks for your input...