Oldsmobile Aluminum Heads, BBO Edelbrock Performer RPM Air-Gap intake #7551 Oldsmobile Edelbrock Aluminum heads with a stage 3 from J&S machine shop with port matched Edelbrock Performer RPM Air-Gap Intake. I have another Oldsmobile motor with aluminum heads and intake already on it so selling these. Heads and intake never installed after machine work done. Intake is new never installed. $3200 located south suburbs of Chicago

 

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Replied send a email and ill send the other info

 

Very nice flowing heads and intake combo, good luck with the sale!

 

Bump still for sale...roller cam with all components with the sale.

 

Specs and maker of the cam and rollers?

 

Custom grind from BMRE
All Comp Cam components

 

Please provide what is involved in the stage 3 performed by J&S
were the heads shaved to bump compression?

 

J&S took the stock heads ported them increasing horsepower. They were milled to 75cc.

 

that is a nice designed cam, and it would really make More power with some 1.7:1 or 1.8:1 rocker arms.


“assuming” that these numbers above from J&S ported heads and the numbers below are from benches flowing at 28 in-Hg, the J&S heads flow very well for the small Intake valve size. Sort of weird that the port stalled so exactly at the same big number though.

also, no verification on these to show calibration and what size bore/sleeve was placed under the head. The bigger the bore, the better the flow.

Same reason why big bore engines make more power than undersquare ones (455 olds)


Here is some stock flow numbers I found for the Edelbrocks:

lift Intake flow / exhaust flow

.100” 65/53
.200” 136/103
.300” 197/139
.400”242/167
.500” 243/182
.600” 250.189
.700” 253/192

 

Thank you for posting that info. The rockers that I have for this roller cam are 1.6, all Comp Cam.

 

If this top end doesn't sell its going in a 468 Olds short block. Whole motor will be up for sale.

 

This seems like a lot of really good parts that could make a great engine, I think you just need more good pics of everything that you are including in total. This looks like a great way for someone to build a hot street/mild race engine that could make very good power.

It sounds to me that you are including the following:

Ported Heads
Intake
Comp Hydraulic Roller Cam
Hydraulic Roller Lifters
Comp Roller Rockers

Please correct me if I am wrong, I am just trying to help out.

What kind of parts do you have in the built shortblock?

 

I took the pistons out cause I didn't have much info on then. They are ARIAS pistons. Stock rods and stock crank. It currently is sitting with crank installed, flywheel, .600 lift flat tappet cam, Cloyyes timing chain on an engine stand.

 

Heads were sold separately. Still have the Intake and the hydraulic roller cam for sale

 

How much for intake and cam?

 

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