Heads Explained

[ozval318]

I have a mild 318 combo at the moment. It was a factory 2BBL engine and I now have an airgap with a 4bbl. The heads have 360 size valves , small amount of bowl work and the opening of the inlets was gasket matched to 360 gaskets and the airgap.

I will look for a casting number but I was wonderng what the chamber size would be and my best improvement for power on a budget.

I am looking at adding a 75 shot of Nitrous to the current set up and ideally want to build a 390 stroker at some stage. So any heads I buy now would have to work with that engine.
I live a fair way from a big city and drive the car a lot to go on runs etc with our club. Even the 390 I was looking at Hydraulic cam etc for reliability

I found these on the hughes site

http://www.hughesengines.com/Index/...el1=Q3lsaW5kZXIgSGVhZHMsIElyb24=&partid=25741

Anyone have any feedback on them or am I better off finding a 360 head and getting it done. Will I loose compression with the 360 head ?

Thanks in advance

Shaun

 

[RAMM]

The heads you link to are a very good choice for a 390 as you state. From what you say I would not consider an aluminum head. J.Rob

 

[moparlover]

Cylinder Heads, "LA"
Aluminum Assemblies, Requires Head Bolt Set P5153851.
1 P5153849 Cylinder Head, Aluminum, 63 cc Combustion Chamber,
2.020"/1.600" Valves With HP Springs, 1967-1992 "LA"
318/360 Engines
1 P5155639 Cylinder Head, Aluminum, Bare, Used in P5153849
1 P5153850 Cylinder Head, Super Commando, Aluminum, Machined and
Assembled with 2.080" / 1.600" Valves (5/16" Stem) with HP
Springs, Use Rocker Arm Set P5153995, "LA" Engines
1 P5155128 Cylinder Head, Aluminum, Super Commando, Bare, Used in
P5153850

i'd save up your money and get a set of aluminum heads and intake when you are able. just go with what you have until you can afford the good stuff.
a set of P5153849 will cost $1800 bucks. comes with springs, valves, retainers all ready to bolt on.
if you stash $50 bucks a week (skip fast food) in 36 weeks you will have some badass heads... or use your income tax return to help fund them

i would not spend extra dough on the iron heads, like $300 or more for valves and stuff

you really want 2.02 valves if you can get them, they make a difference

 

[moparlover]

also see this thread
http://www.forabodiesonly.com/mopar/showthread.php?t=80936