Thread: 1969 302 help

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Thanks Don for helping with your experience .

Bobby - I ran those heads on a 351W but did change to screw in's. I really is very easy. Pull the studs, run a taper, plug and bottom 7/16" tap carefully down the existing and correctly sized holes, bolt on your stud of choice to match the rockers of choice and you are done with stud pull worry. While you are doing that, look in the exhaust port. If there's an EGR hump, clean it out with a die grinder and burr to level with the port floor, forget about any EGR hole as it will be not a problem as well as doing any fancy port work unless you have a flow bench. The port clean out will make a tiny performance difference as well as help gas mileage a wee bit.

Originally Posted by IC2

Bobby - I ran those heads on a 351W but did change to screw in's. I really is very easy. Pull the studs, run a taper, plug and bottom 7/16" tap carefully down the existing and correctly sized holes, bolt on your stud of choice to match the rockers of choice and you are done with stud pull worry. While you are doing that, look in the exhaust port. If there's an EGR hump, clean it out with a die grinder and burr to level with the port floor, forget about any EGR hole as it will be not a problem as well as doing any fancy port work unless you have a flow bench. The port clean out will make a tiny performance difference as well as help gas mileage a wee bit.

Dave Thought the valve seats would be the biggest issue . Your stud replacement sounds like a good one .