Thread: What gains from 781 vs 236 heads?

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I think I might have found a set of stock 781 heads to put on my stock 454. What gains could I expect from the head swap and a bit bigger cam?

The car runs 13.46 now with the stock 454.

quite a bit, depending the size of your cam, you could unleash 30 horsepower, 236 are only good for stump pulling torque and that it. 781's are very good heads and they flow very well and will make a 454 scream with the right parts!
236 heads make very good paperweights and boat anchors!

No joking!!! i put a set on mine! but not before i ported & gasket match em..made the Elcamino SS454 COME LIVE..& Run's 12:20's all day long...

Originally Posted by Blackroc

I think I might have found a set of stock 781 heads to put on my stock 454. What gains could I expect from the head swap and a bit bigger cam?

The car runs 13.46 now with the stock 454.

781's will easily support 550 hp.
Install 2.19/1.88 bowl blend and gasket match.

Originally Posted by erik erikson

781's will easily support 550 hp.
Install 2.19/1.88 bowl blend and gasket match.

Thanks for that info. I have found two different sets of them now.

A stock set with stock valves and hardware for 300 or a ported set with the 2.19/188 valves and new comp springs etc. for 900.

I suspect it would cost more than 600 to make the stockers similar to the ones for 900?

Originally Posted by Blackroc

Thanks for that info. I have found two different sets of them now.

A stock set with stock valves and hardware for 300 or a ported set with the 2.19/188 valves and new comp springs etc. for 900.

I suspect it would cost more than 600 to make the stockers similar to the ones for 900?

If you are looking at the $900 set check out these on e-bay.
Item number 180045650188.