5.3 + 1 7/8" headers = overkill?
#11
#14
i remeber reading test's done on bolt on ls1's with 1 3/4 and 1 7/8 headers and the 1 7/8 did better all around.
stock 5.3 id say you probably wouldnt notice a difference but with that tvs , the larger primary header will make more without a doubt. even if they made less , they are free in your case . i wouldnt think twice and ****** them suckas up.
stock 5.3 id say you probably wouldnt notice a difference but with that tvs , the larger primary header will make more without a doubt. even if they made less , they are free in your case . i wouldnt think twice and ****** them suckas up.
I haven't built as many things up as some on here, but if it were me, &
I was N/A, I'd say no, but your boosted appl. will smile IMO.

Don't know that I'd wanna spend that much on a set, even if Eva Longoria was gonna do me a favor or 2 afterward. 
That's more than my Dynas were w/. the hi flo cats & Y pipe. Altho I have > that in my whole exh. system end-end, that's gettin a bit too steep. And I like top shelf stuff, I'm not gonna lie.
#15
These headers are for my 1970 5.3LS SWB truck. I don't think my current Sanderson headers will work with any of the newer year Chevy. Currently my truck is NA, but it will be boosted.
Thanks for all the opinions.
David
Thanks for all the opinions.
David
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