Exhaust question....

[Dave Severson]

Ok, we're talking about my '82 'maro. Ran out of room under the car for a decent sized exhaust system for the car so it's going to be a set of outsiders with fenderwell headers..... (I like my cars low, btw)

The engine is a steel crank 6" rod 383 with flat top pistons, heads will be aluminum (not bought yet). Cam will be a mechanical roller with rev kit--no cam specs yet, got to get the rest of the pieces lined up first... 750 4 barrell carb on a single plain intake. RPM will be about 7500 max.

Question is, the outsiders will be 3 1/2" tubes with a muffler inside them (or at least a reasonable facsimilie of a muffler). Wondering what size and length primary tubes to run, and whether a not I should make them a set of step headers??? Should it be 3 1/2" or 4" collectors, and how about a guess on the collector length, too???? I'm building the headers, so we're not stuck with something some manufacturer thinks should work....

Oh yeah, transmission is a 5 speed so no concerns on all that tranny and converter stuff.....I still like having 3 pedals....

Thanks for the help.

[pat mccarthy]

well the primary is going to be what it takes to get from point A the engine to point B the out side of the fender well so around 36 if you lucky on the collector s i would use 3 1/2 start the step at 12 or so to the next tube 7/8 to 2 .what happen to the bbc we run bbc to 8000 with out rev kits ?

[Dave Severson]

well the primary is going to be what it takes to get from point A the engine to point B the out side of the fender well so around 36 if you lucky on the collector s i would use 3 1/2 start the step at 12 or so to the next tube 7/8 to 2 .what happen to the bbc we run bbc to 8000 with out rev kits ?

I was given a complete short block 383, fresh and ready to go!!!!!!

[pat mccarthy]

I was given a complete short block 383, fresh and ready to go!!!!!!

boy you are lucky some one sure wants you to walk to the light . well sell it i have all the part s for a 556 dart big M billet cap block with new diamond pistons .crank .rods .you would have to use corn fuel in it or hi tests today is .the hell of a deal day she needs to go

[Dave Severson]

boy you are lucky some one sure wants you to walk to the light . well sell it i have all the part s for a 556 dart big M billet cap block with new diamond pistons .crank .rods .you would have to use corn fuel in it or hi tests today is .the hell of a deal day she needs to go

hmmmm. Well, I could always build another chebbie, i guess!!!!!

[pat mccarthy]

well billet steel cap big m 9.800 deck with arp main studs . diamond dome pistons 4.500 bore with total seal classic rings. H beam rods ARP bolts.4340 4.375 crank = 556 cid . king bearing s main and rods .dura-bond hp cam bearings short block at one hell of a deal . you can not buy the crank/ rods and the block for what i can sell it for

[Dave Severson]

well billet steel cap big m 9.800 deck with arp main studs . diamond dome pistons 4.500 bore with total seal classic rings. H beam rods ARP bolts.4340 4.375 crank = 556 cid . king bearing s main and rods .dura-bond hp cam bearings short block at one hell of a deal . you can not buy the crank/ rods and the block for what i can sell it for

Sounds like a killer setup Pat!!!! Dare I even ask what something like that would sell for???? Seems like the real chebbie guys would be all over it!!!!!!

[Mike P]

".....I could always build another chebbie, i guess!!!!!......"

OK WHO ARE YOU and WHERE's DAVE??????????????????

[pat mccarthy]

".....I could always build another chebbie, i guess!!!!!......"

OK WHO ARE YOU and WHERE's DAVE??????????????????

hell paint it dark blue call it what you want

[Dave Severson]

hell paint it dark blue call it what you want

For all the stock chebbie stuff in that engine, guess you could call it whatever you want!!!!!!

[pat mccarthy]

For all the stock chebbie stuff in that engine, guess you could call it whatever you want!!!!!!

you got it.... that why my donovans are not chevys

[pat mccarthy]

Sounds like a killer setup Pat!!!! Dare I even ask what something like that would sell for???? Seems like the real chebbie guys would be all over it!!!!!!

well i did not want to sell this block was going to keep it for a back up for the chevy build a 556 blower engine i have pistons and bottom end parts to do it ..BUT . i can not eat it or pay bills with it sitting so she has to go . and i do not need anything bigger then the 548 blower engine thats in the chevy .it is to fast the way it is for a car thats not tub out .and i will never cut the trunk pan out .it to clean to cut