Harmonic Balancer

[baldy1]

Have a 87 stang. 302 with 351 windsor heads. E-303 cam with 1.7 rockers. I have 2 questions. First are the 1.7 fine with the e-303 cam or are 1.6 beter and why. Second is, the car was a 5 speed I am turning into an auto. I am biulding a bad a.. trans for it. Can I use my harmonic balancer or do I have to get a new since I'm going to an auto, or does it matter. I'm almost done with motor. I need to know.

 

[BlownFiveLiter]

You can use the same balancer, no problem. Which 351W heads are you using? Most, if not all factory heads would be better served by a split pattern cam that favors the exhaust, as they tend to be a bit asthmatic on the exhaust side. Going with some 1.7 rockers on the E cam would bring your total lift to .529, which may be a bit too much for a stock bottom end, so you'd likely want to check PTV clearance.

 

[baldy1]

See this motor has been built before. Long story how I got the car. Its bored .060 over which I dont like. The car ran great before had a lot of electrical issues. I have torn the car apart and replaced all the wiring harnesses. not sure which 351w heads they are. Stupid question what is PTV clearance? So should I change to the 1.6 rockers. Nevermind about the stupid question. I had a brain fart. Piston to Valve Clearance