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346236 Matched Date Pair Bbc Small Oval Port 402 454 Cylinder Heads on 2040-parts.com

US $264.50
Location:

Canton, Ohio, US

Canton, Ohio, US
Returns Accepted:ReturnsNotAccepted Part Brand:Chevrolet GM Manufacturer Part Number:346236 Warranty:No

346236 BBC Pass Small Oval Port 402 454 Cylinder Heads.


Cast dates J 21 74, J 31 74, 1975 passenger car applications. Heads have been disassembled, cleaned and magnafluxed. No cracks or stripped threads present. 

These are passenger car, small oval port, high velocity "peanut" port cylinder heads that are known for producing exceptional amounts of low end torque and the highest highway fuel efficiency possible on big block engines. These heads are compatible with OEM 384740 Rochester Q-Jet intake manifolds. 

Head J 31 74 has a lengthwise scratch on the combustion chamber side which should not be a problem if you are using composite head gaskets, see picture detail. We will include the original intake/exhaust valves, valve springs and shims with these heads. A reputable machine shop should be able to recondition these cylinder heads using some, if not all of the existing factory hard parts. If we had a supercharger setup and some quality pistons, we could have some fun with these! We currently have one other peanut port set available. Email us for those date codes.

Email with any other questions.

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