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Yea, not sure what I've bought with Speedmaster heads but honestly they seem alright so far... I did go about 10lbs over what their torque said and using their stud kit as well....the engine-airlocked first few mins it ran got up in Temp but then It cooled off and seems fine even few months...

Hey Guys, I've got a set of Speedmaster heads on my 360 1972' block.. obviously non roller block, everything pretty well bolted up without issues even alternator... I did have comp cam springs installed/and the retainers to but I used the Speedmaster valves.. I noticed the valves are lil bit...

Hello again Sireland67, well that dual point distributor is definitely rebuildable but i didn't even realize that particular Accel Distributor cap and rotor arn't available anywhere....local speed shops & even Summit Racing...but no luck... do you still have your old cap n rotor around...

Hello Agian, well that dual point distributor is definitely rebuildable but i didnt realize that particular Accel Distributor cap and rotor arnt available anywhere ....Holley bought them out and quit making them, tried couple local speed shops and Summit Racing and no luck.... do you have...

Dart 69'

Near Fredericksburg.... kinda between Richmond & DC off I95

Your right! I'm just going to continue with the current plan and see what happens... I'm sure it will be Hell of a lot more then that 273 2bbl single exhaust was....lol. ok thanks man...

Ok sireland67 I will do that!!

That 318 engine is out of a 1976 Van .... so your probley right pistons way down in the hole... last A body i built ended up with a 426 Wedge motor and that was fun and easy! Tryna to find a mild combo for this 318 is becoming very difficult... but I'm not going Big Block this time....

Ok, I see.. well, maybe 450" cam is to big then if my heads aren't going to allow me much compression.... sounds like to much money to blow on 273 small valve heads anyways... I've got some 915 J heads that are in good shape but those also will kill my compression on a stock 318... like...

Now my thing is selecting a Cam that will be respectful but not to big.. everything I find says .450" or so - not much more then that.. maybe a cheap Summit Cam? The reviews are good ... Gotta buy springs to... I'm leaning toward that ... anyway that's my deal so far...

Well actually those stock 318 heads are junk... (long story) but I still have a decent fix-able set of 273 heads that came on this 69 Dart so i started reading that they're basically the same accept for like very low CC volume chambers like 60? Figure that will help a bit more with compression...

I see.....Yea, I wish I had some of thoss 302s handy... im having those 273 heads shaved like 10/15 or so.. that will help the compression....maybe I'll have 8.75 to 1? Oh-well this slightly warmed over 318 is really just a quickly to get the car back on the road.... I have a 340 block I...

2843675 is the casting.. I guess I'm gonna go on and do a valve job on these things & change springs to match cam...everything i read says stay around .450" lift with those small valves... im used to alot more racy stuff but maybe this lil engine will surprise me.... I'm gonna go with thinner...

Thanks! This gives me the confidence to go ahead and make it happen...ill let you guys know how it runs....

I'm getting ready to do exactly what you did....wondering if you used a thin head gasket to get your 9.1? I saw a gasket that's like .029 thickness instead of the usual fel-pro .039" ..... using a .450" cam or basically a 340 cam.... see what happens.....

Yes! I forgot to mention the thin head gaskets .029 I hear... I'd like to find some 302 casting heads but junk yard one's might be cracked and part stores are having a hard time finding me those.. sooo, since I had some 273 heads I went for the small chambers for the compression gains...

Hello, I'm just wondering how my 318 will run with a set of late 273 Heads (about 60cc) and a 340 cam, aluminum intake & 4bbl... dual exhaust in 69 Dart? Hopefully someone has tried this combo and loved it cuz I'm about to ... I know it's not big power but hopeful it will be respectfully...