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-   -   Side Exhaust for 540 BBC (https://www.corvetteforum.com/forums/c3-tech-performance/3453089-side-exhaust-for-540-bbc.html)

qboy 04-15-2014 10:05 PM

Side Exhaust for 540 BBC
 
Need some help finding headers and side exhaust for my 75 540 BBC. It's got AFR 335 heads. Would like to go with largest possible size headers and side pipes should be quiet enough for the street.

TimAT 04-16-2014 12:13 AM

Hooker makes a 2-1/8 primary header. You can get several different muffler/baffles for the sidepipes to suit your taste. Keep in mind that some of the mufflers are really restrictive and will hurt the performance.

Street Shaker 04-16-2014 12:43 AM


Originally Posted by TimAT (Post 1586668433)
Hooker makes a 2-1/8 primary header. You can get several different muffler/baffles for the sidepipes to suit your taste. Keep in mind that some of the mufflers are really restrictive and will hurt the performance.

568 ci with Hooker Sidepipes 2 1/8" primary's and Hooker max-flow inserts, I had baffles at first but did not like the sound and switched to Hooker max flow's.


qboy 04-16-2014 02:16 AM

Thanks for the replies. I was hoping to get at least 2 1/4" headers. I couldn't find any that size with side exhausts though. Street Shaker, yours sounds fairly quiet which should be nice since I'm only driving on street.

Street Shaker 04-16-2014 02:47 AM


Originally Posted by qboy (Post 1586668778)
Thanks for the replies. I was hoping to get at least 2 1/4" headers. I couldn't find any that size with side exhausts though. Street Shaker, yours sounds fairly quiet which should be nice since I'm only driving on street.

It's not as quiet as it sounds on video it's a bit louder, it dyno 820 hp all motor on pump gas, car is mostly street driven makes few runs on track every once in a while.

Corey_68 04-16-2014 08:01 AM

I made 632hp out of my 468BB with Hookers and STS Baffles.

bashcraft 04-16-2014 12:28 PM

Are you guys running raised port heads?

TimAT 04-16-2014 03:26 PM

AFR heads' exhaust ports are raised .300 or thereabouts. It gets a bit tight where the primary tubes go under the frame, and then again past the steering box.
I did a test fit on my 69 before I jumped out and spent $$$ on heads so I didn't have to replace the headers. I set a bare block, a pair of used solid copper head gaskets that were close to .200 thick, and then heads that had .250 raised ports.

Super6 04-16-2014 06:08 PM

This is a mild 540 with Hookers and Max-flows. About 1.25 HP/cube. Video quality not so hot, but the audio is representative.

http://i1301.photobucket.com/albums/...psf54dad4d.jpg

qboy 04-16-2014 08:05 PM

The videos with the audio are much appreciated.

Bromleys Corvettes 04-16-2014 08:57 PM


Originally Posted by Street Shaker (Post 1586668562)
568 ci with Hooker Sidepipes 2 1/8" primary's and Hooker max-flow inserts, I had baffles at first but did not like the sound and switched to Hooker max flow's.

http://youtu.be/zpZBcfqBNaM

BadAss Vette nice job:)

Corey_68 04-16-2014 11:19 PM


Originally Posted by qboy (Post 1586675321)
The videos with the audio are much appreciated.

My 68 when it had the BB...


69ttop502 04-20-2014 10:41 PM

I had to modify 4 tubes to fit on my 69 with a 502 and AFR 315's. They are Hookers with the 2 1/8 inch tubes and ceramic coated in and out. My sidetubes have 3 inch Dynomax race bullets spliced in. Not quiet but the dyno loved it. The system will be for sale here in a couple of weeks if you are interested.

Bill


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