header question
Thread Starter
Instructor
Joined: Sep 2006
Posts: 165
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From: laguna niguel ca
header question
I have an 01 c5 w/ a new ls2 402 in it.
Will ls2 05- n up headers fit in the c5's hood, or will 01-04 headers fit on an ls2 in a c5's hood.
thanks. trying to see what options i have.
Will ls2 05- n up headers fit in the c5's hood, or will 01-04 headers fit on an ls2 in a c5's hood.
thanks. trying to see what options i have.
Instructor
Joined: Apr 2007
Posts: 225
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From: MCMINNVILLE TN
thats a very good question
i would think u would use the c5 headers with no emissions tubes. since the heads are basiclly cnc'ed ls6 heads i would not think there would be any changes in bolt pattern. and the c5 headers are formed to fit the channel that runs inunder the car. if u dont get an answer on here call tsp or another sponcer that has completed this swap.
Instructor
Joined: Apr 2007
Posts: 225
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From: MCMINNVILLE TN
this is strickly what ive read and talked to tsp about i have not done this. but everyone agrees that 1 3/4 are great for stock cubes but fall short with a cam and more cubes. so if u are going to boost it or blow nitrous through it id go 1 7/8. if ur not, i dont think u would see enough gain in hp to justify the cost difference
Race Director
Joined: Mar 2007
Posts: 18,307
Likes: 21
From: Marlton. Increasing performance one speeding ticket at a time! NJ
this is strickly what ive read and talked to tsp about i have not done this. but everyone agrees that 1 3/4 are great for stock cubes but fall short with a cam and more cubes. so if u are going to boost it or blow nitrous through it id go 1 7/8. if ur not, i dont think u would see enough gain in hp to justify the cost difference
He's got a LS2 402ci. That's going to be strictly 1 7/8's territory. Even stock LS2's should go 1 7/8's. Only stock cube LS1/LS6 should stay 1 3/4.
But you should definately go with a C5 header system. Not because of any difference on the heads (there isn't), but because all the bends are such to fit a C5. The C6 has different bends.
Instructor
Joined: Apr 2007
Posts: 225
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From: MCMINNVILLE TN
so there u go i was right. anything over stock cubes gets 1 7/8 period. and i was even right about the heads bein the same and all u needed to worry about is the contour. im glad that i was corrected. lol
