Olds 403 heads

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Olds 403 heads

Thread Tools. March 11th, , PM. I finally got my engine together and took it out and it runs great. I still have some timing and carb adjustments to work out but the throttle response is amazing. I've gotta thank cutlass efi for the cam recommendation it pulls good and has a great sounding idle. View Public Profile. March 12th, , AM. March 12th, , PM. What all was done to them? Either way a point higher compression and a much better cam will go along way. Find More Posts by olds and The heads are 7a's. I milled them.

I need to measure guide clearance and access the valve job on these other 6 heads, see how good a deal they were. January 20th, PM.

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These are cast from virgin A aluminum and are heat treated to T6 specs. They are manufactured using their gravity casting process, which ensures a more uniform and robust casting. This provides a strong platform for you to build on. They are designed for high performance, are non-emission, Oldsmobile , , and c. This complete assembled pair of heads includes the following premium ProComp components: ProComp 2. These heads are similar to the Edelbrock Oldsmobile cylinder heads, at a much reduced cost. Anthony — March 11, Bought these for my GMC Motorhome.

Olds 403 heads

Read up on cylinder head basics and then learn about what makes ours superior. The cylinder head is located inside an internal combustion engine, where it sits above the cylinders on top of the cylinder block. Together, the cylinders and the cylinder head form the combustion chamber, which is sealed by a head gasket. Valves, fuel injectors, and spark plugs are also often mounted to the cylinder head. A cylinder head is made up of various passageways, which it utilizes to control the combustion process and cool the engine.

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I do get 9. Find More Posts by Pete Reactions: 1 user. February 26th, AM. Olds intake. Get the matching valve springs to go with whatever cam you go with, Cutlassefi is a good source and vendor. All times are GMT Media New media New comments Search media. Too little compression ratio or too much duration will cause the cylinder pressure to drop. We had plywood stood up in the bed 8 foot tall and would stack it to the top and those big inch Olds would run the same empty or loaded. November 28th, , PM. I'd look elsewhere first. Decided there to just put the heads on as is. October 21st, AM. I had terrible quench, like.

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November 27th, , AM. Dang it. Forums New posts Trending Search forums. Have fun with yours. It would knock for the 60 mile drive home and I would stick another crank kit into it. Too little compression ratio or too much duration will cause the cylinder pressure to drop. My is right at 9. So cutting the block deck will probably be needed to square it anyway, but first install the new pistons, measure how far they sit in the hole. I still run that engine today and it caused me to sell and give away all my Oldsmobile stuff. You will wind up with an untrue bore.