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General Forums => The Mess Hall => Topic started by: j33p3r4x4 on November 16, 2005, 09:21:07 PM

Title: Port Polishing
Post by: j33p3r4x4 on November 16, 2005, 09:21:07 PM

Does anyone know how much performance gain I will get if I Polish my ports? I have the engine apart and I wonderd if it was worth doing? thanks for the help. :D

Title: Port Polishing
Post by: bnine on November 17, 2005, 12:53:41 PM

I would guess just polishing would a be a couple horse.

If you are porting and matching to an exhaust manifold/gasket, and doing the same to the intake you should expect considerable gains, in the 20 plus horse range. Some lowend torque might be lost, but minimal unless you change the cam profile and increae the size of the exhaust valves.

Title: Port Polishing
Post by: jwrape on December 22, 2005, 06:54:39 AM

Quote from: "bnine"

I would guess just polishing would a be a couple horse.

If you are porting and matching to an exhaust manifold/gasket, and doing the same to the intake you should expect considerable gains, in the 20 plus horse range. Some lowend torque might be lost, but minimal unless you change the cam profile and increae the size of the exhaust valves.

I plan to polish and port me head and add the stage 3 cam with a .450 lift. Should be a nice combination.