Header primaries too large for my set up?
10-19-2009, 05:30 PM
#1
Header primaries too large for my set up? Well I put out a thread to find someone selling 1 7/8" headers for my engine that I am buiding (mild cammed LS2 bottom end, LS3 top end). For some reason I can only find Kooks 1 7/8" stepped to 2" headers for any good deals. I know they are overkill, but will it hurt my set up much to run these headers?
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10-19-2009, 07:32 PM
#8
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dude, you're engine is an air pump. The better you can get air in and out, the more power you will make. 1 7/8" x 2" headers will be FINE. Bolt them up to a good set of heads and you'll be in business 
10-20-2009, 11:10 AM
#11
I'd go for it. 1 3/4 is way too small. It's debatable if those are even big enough for bolt on ls1's (imho they are), let alone a head/cammed ls2. If it were me, I'd get the stepped. It leaves you with plenty of room to grow (say if you wanted to put a decent set of heads on or maybe a little bit of nitrous).
10-20-2009, 11:58 AM
#15
Bigger will be better in this case!!! Go for the 1 7/8" and never look back! On the engine dyno, we've seen them pick-up nice power even on stock long-blocks from about 2000rpm on up to redline!!
You don't absolutely need the stepped header, although it will likely help your curves a bit on the rollers. Unless you're getting a STEAL on them, the 1 7/8" will take care of you perfectly!
You don't absolutely need the stepped header, although it will likely help your curves a bit on the rollers. Unless you're getting a STEAL on them, the 1 7/8" will take care of you perfectly!
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Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
10-20-2009, 12:00 PM
#16
Bigger will be better in this case!!! Go for the 1 7/8" and never look back! On the engine dyno, we've seen them pick-up nice power even on stock long-blocks from about 2000rpm on up to redline!!
You don't absolutely need the stepped header, although it will likely help your curves a bit on the rollers. Unless you're getting a STEAL on them, the 1 7/8" will take care of you perfectly!
You don't absolutely need the stepped header, although it will likely help your curves a bit on the rollers. Unless you're getting a STEAL on them, the 1 7/8" will take care of you perfectly!
