Another “What Cam and Heads” do I go with….?

[RustyRatRod]

I think roller cams are more of a fix for the goberment making zinc oils unusable in catalytic cars. Non rollers valve trains are a lot lighter and can perform quite well. I could be wrong. Just spit balling here.

Absolutely correct. Hughes for instance sells a line of lightened solid lifters that when coupled with other lightweight valve train parts can almost rival the power of a roller cam. I cannot agree with you more strongly With your first sentence. Having said that, I WILL build a roller engine next, if for no other reason than resistance to wear.

 

[RustyRatRod]

I’d pay up for a melonized steel distributor gear if you’re gonna be doing regular street driving or putting a lot of miles on it.

Yes, or composite either one. They both work well.

 

[4eighteener]

If it is a cast core or gear, the standard cast intermediate shaft will work. Late model 318 and 360's and all magnum used a standard cast intermediate shaft which lasted hundred s of thousands of miles.
If it is a billet core cam, you should use the melonized gear.
I've read on this forum not to use a bronze intermediate shaft gear for a street car, and consider that sound advice

 

[67cuda360]

If it is a cast core or gear, the standard cast intermediate shaft will work. Late model 318 and 360's and all magnum used a standard cast intermediate shaft which lasted hundred s of thousands of miles.
If it is a billet core cam, you should use the melonized gear.
I've read on this forum not to use a bronze intermediate shaft gear for a street car, and consider that sound advice

That is great to know. Thanks.

 

[abodyjoe]

No. .100 in the hole and sometimes more is how they were. The slant 6 is usually around .180 in the hole. You can argue till the cows come home, but that's how they were built. There were some exceptions, like the 318. They were usually .040-.060 in the hole. Your calculations for the aluminum head are probably about right, but the iron heads typically had larger chambers than what was specced, so the stock compression would blueprint a bit lower than spec, like they all did. 8.75 is probably about right with the 60cc chamber.

case in point.. this is a stock 74 360. don't remember how far down the pistons were. not sure we even measured because it really didn't matter for what i was doing.

 

[LJ67barracuda340]

The Hughes roller I used can run with a stock intermediate. I got the one Hughes has to be fresh.