304 heads on a 360

[fsjwagoneer]

Was wondering how these heads would work on a 83 360. Are 83 360 heads dog leg? What exhaust manifolds would I have to get? Here are the casting #'s.

3231480-2 HV 78

[ April 01, 2003, 07:13 PM: Message edited by: fsjwagoneer ]

[VAJeepGeek]

304 and 360 heads are pretty much interchangable... depending on the year.

But why would you want to go down to 304 heads? I've got 360 heads on my 304...

[fsjwagoneer]

I thought dogleg heads would be a improvement. Are the flow rates on dogleg heads better? Combustion chamber smaller? Just trying to get more out of it, till I can build a 401

[jeepcreep]

HIGHER COMPRESSION WITH THE 304 HEADS,THE CHEVY GUYZ PUT 305 HEADS ON 350'S.

[Stuka]

304's have tiny valves and smaller ports. Stick with the 360 heads and get higher compression pistons if you want more compression.

[FSJ Thing]

Or take the block to a machine shop and have it decked(shaved down 1 - 2 1/1000s).

[Cecil14]

From what I know all the V8 heads from '70 or '71 and up (304, 360, 401) all had dogleg exhaust ports.

Anthony

[bvibert]

Your 83 heads are already dog leg. No gain in replacing good 360 heads with 304 heads. You may get higher compression, but the valves are much smaller.

[fsjwagoneer]

Thanks for the info. I used to be one of those chevy guys, and didnt know how the heads fit inline on the performance scale. Is there a head that is more desired than others?

[Crazy_Jeepman]

Info here. ;) AMC V8 Tech (http://www.amxfiles.com/resource/tech/v8faq.html)

[bvibert]

Nice chart here (click) (http://www.fullsizejeeps.com/jeeps/files/bvibert/amc-v8-heads-LScp.jpg) too ;)