Smooth out the casting under the valve seats and blend the metal in better Tear drop shape the valve guides, now they will be just a round O from top to bottom thats made onto/into the heads, well reshape them to look for like a V with the same round hole in the bottom of them. Don't try to reshape the exhaust port though, just remove all flash and smooth it up, make whole port feel slick and look like a mirror. Spend most of your time on the exhaust ports, valve guides and under the valve seats. Don't hog out the intake ports, just clean up any big casting flash, grind the pushrod pinch at upper corner of ports some, leave intake port with about an 80 grit surface finish 015" steel shim gaskets and copper coat sealer on them.ġ.6 ratio roller tips, machine slot in heads for the rocker change so the pushrods would rub against slot.
You would need to have the intake milled to match the new angle of the heads and theres more money When you start milling that much off heads you end up with intake angles that are out. You would have to mill the heads down to 66 cc just to get your DCR to around 7.8:1 with that K1103 cam. In fact I don't think I would use the K1103 even if you did mill the heads. If you can't get em' milled then do not use the cam you listed, go for the summit K1102 204/214*. If you can get the heads milled cheap then go for it, if not then don't worry about it. Anyone think I can squeeze 30+hp out of doing all this? 100% stock engine right now with dual exhaust as the only mod. I can get a friend to mill the heads down for probably pretty cheap, and either see if he can port em too or I can try a home port job.
I have the performer intake, and basically the cam, lifters, roller rockers will be around $200 shipped. Valve Lift with Factory Rocker Arm Ratio: 0.442 int./0.465 exh. Intake Valve Lift with Factory Rocker Arm Ratio: 0.442 in.Įxhaust Valve Lift with Factory Rocker Arm Ratio: 0.465 in. What does everyone think of getting the 882's worked on cheap by say a friend to mill em down for more compression, a home port job, performer intake, 1.6 roller rockers, and a cheap summit cam.īasic Operating RPM Range: 2,000-4,500 RPMĭuration at 050 inch Lift: 214 int./224 exh. I think im going to just try and cheaply add some hp to the car without doing a total head swap and trying to find perfect cam etc. Ok, I honestly think that putting "cheap heads" on my car wont be worth it ( see below ).
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