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CID symmetrical port BBC heads

General engine tech -- Drag Racing to Circle Track

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80iowaBu
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CID symmetrical port BBC heads

Post by 80iowaBu » Sun Dec 01, 2019 4:54 pm

Does anyone have any real world experience with these heads?

bob460
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Re: CID symmetrical port BBC heads

Post by bob460 » Sun Dec 01, 2019 9:19 pm


Walter R. Malik
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Re: CID symmetrical port BBC heads

Post by Walter R. Malik » Sun Dec 01, 2019 9:38 pm

80iowaBu wrote:
Sun Dec 01, 2019 4:54 pm
Does anyone have any real world experience with these heads?
Good stuff but, not many intake manifold choices.

John who used to own CHI now owns CID and this is kind of a 351 Cleveland head design for a big block Chevrolet.
http://www.rmcompetition.com
Specialty engine building at its finest.

mag2555
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Re: CID symmetrical port BBC heads

Post by mag2555 » Mon Dec 02, 2019 6:47 am

With those heads that well into the 600 cid size motor is what's needed to get some velocity into the 325 fpm range going.

Tell you the truth I am not impressed with 1088 hp unless it was being made at like 4000 rpm!

80iowaBu
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Re: CID symmetrical port BBC heads

Post by 80iowaBu » Mon Dec 02, 2019 8:35 am

mag2555 wrote:
Mon Dec 02, 2019 6:47 am
With those heads that well into the 600 cid size motor is what's needed to get some velocity into the 325 fpm range going.

Tell you the truth I am not impressed with 1088 hp unless it was being made at like 4000 rpm!
I don’t think that’s bad with a flat tappet cam on pump gas, maybe I’m a little behind on the times

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