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Craig 930 RS Craig 930 RS is offline
Me like track days
Craig 930 RS's Avatar
Join Date: Sep 2003
Location: Kirkland, WA
Posts: 10,196
321 still has issues. At or around 1800 321 becomes unstable. The bottom line is headers will crack from many things. One of the biggest factors is EGTs and cars running too lean. If you think that 321 doesn't crack, think again.

Here is the question. On a car that runs lower EGTs and proper AFRs will last easily 10 years. If you buy a new set of hears that cost 1800.00 every 5-10 years break down that cost. That works out to be a small expense.

Unless the headers are 625 Inconel you are going to see issues at some point. 6K or not. So if you get 5-10 years from the B&Bs for a 1/4 of the price you could run them for 3-4 years and sell them on ebay for 3/4 of the cost and buy a new set.
Still dig those Chinese headers?
- Craig 3.4L, SC heads, 964 cams, B&B headers, K27 HF ZC turbo, Ruf IC. WUR & RPM switch, IA fuel head, Zork, G50/50 5 speed. 438 RWHP / 413 RWTQ -
"930 is the wild slut you sleep with who tries to kill you every time you "get it on" - Quote by Gabe
Movie: 930 on the dyno

Last edited by Craig 930 RS; 01-19-2007 at 09:55 PM..
Old 01-19-2007, 09:44 PM
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