Flowmaster Scavenger Headers
Flowmaster Scavenger Headers I have had a 68 camaro thats been stock for about 10 years. I finally decided to put a LS in. I got a LQ4 from a salvage yard, rebuilding it top to bottom bore 4.030 4” stroke 6.125 rods, fast LSXR intake, 102mm TB. The problem Ive run into is the flowmaster scavenger headers 814115 (https://www.summitracing.com/parts/flo-814115) from an article I read that I cannot even find anymore, were about as good as it gets NA, are discontinued. I can’t find them anywhere. Ive literally charged around $650 on my card then had it refunded around 20 times. I've shopped around a little bit and most everything I've found worth a crap seems to be double that. Does anyone have any suggestions? I do know I want to stick with 1 3/4"-1 5/8" stainless and not coated mild steel because I might not change anything else for another 10 years. Or if anybody knows where I could find a set that would work to.
With a 408"engine that your building you'll want at least 1-3/4" headers. Speed Engineering offers some stainless swap headers https://www.speed-engineering.com/ls...2-ls3-ls6.html hopefully I copied the right link. Look around their site they have a few options. I personally havent used them but i think I saw them used in the conversion section. Look around the conversion section and you'll find plenty of ooptions.
These are bigger tubes than what you wanted but are stainless and priced pretty good.
https://www.texas-speed.com/p-4273-t...1967-1969.aspx
https://www.texas-speed.com/p-4273-t...1967-1969.aspx
I actually looked at those. From what I've read the 1 7/8 loose a little HP and torque. But then the next guy will say it helped. I did go ahead and have my rings spaced for a pro charger. Would the bigger headers be better later on when thats added?
Im my opinion, you need to put the header size decision to bed and get 1-7/8 and forget about 1-5/8. These thing breathe way better than old school small blocks and there is years of research done to support what works best for these Gen 3 and up engines
Yeah I was about to say I know how to read bro! But I kept reading. Yeah after searching again looks like your right. There's been way more side by side comparisons since the ones I was reading before and they've all had no loss to substantial gains with the 1 7/8. And for the price I'll have some Texas speeds ordered tomorrow.
