LS7 427 header size?
03-12-2011, 05:30 PM
#1
Staging Lane
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LS7 427 header size? ive built a serious LS7 for a conversion into a 1977 holden torana and i have to get custom headers made. engine should make around 700hp on E85 fuel plus upto 200 of nitrous.
i thinking 1 7/8 gonna be to small and im looking at 2in set or 2in into 2 1/4.
what your thoughts? car is 30% street and 70% drag
i thinking 1 7/8 gonna be to small and im looking at 2in set or 2in into 2 1/4.
what your thoughts? car is 30% street and 70% drag
03-15-2011, 10:30 AM
#4
Bare minimum 1 7/8". If it's in the budget, the 1 7/8" stepped to 2" would be great as well!
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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!
