View Full Version : 4/7 Swap Headers
kevpow
01-13-2014, 07:52 AM
When running an engine that has the 4/7 cam set up, do you have to run different headers? Thanks
triple0racing
01-13-2014, 09:51 AM
Only if you are running a tri y headers
FlatTire
01-13-2014, 10:28 AM
no. you can run tri-y or non tri-y with a 4-7 swap cam. The dyno will help you make the correct choice.
swingarm4life
01-13-2014, 10:58 AM
If you run tri-y headers, they have to be built for a swap cam. Conventional headers will work fine.
Brian Gray
01-28-2014, 08:38 PM
either way the numbers arent much different from conventional headers if you run std seq. tri ys.
if your asking will it hurt the engine the answer is no
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