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Re: 360 HEADS SWITCH!
[Re: mopartial]
#145418
11/19/08 08:40 PM
11/19/08 08:40 PM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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yes & a few valve train expenditures but definitely worth it.
live every 24 hour block of time like it's your last day on earth
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Re: 360 HEADS SWITCH!
[Re: RapidRobert]
#145419
11/20/08 06:51 PM
11/20/08 06:51 PM
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Joined: Jan 2003
Posts: 1,482
Lake Orion, MI
goldduster318
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,482
Lake Orion, MI
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I have a mismatched set of "587" and "915" 360 heads under the bench in my garage I practically can't give away...they came on the 360 I bought, which I switched to magnums because of the 8:1 pistons.
I can tell you one thing, I have some magnum heads that i literally just pulled off a '96 ram van and installed the r/t springs, bolted them on with the right stuff and the thing runs ridiculous....It probably easily makes 350hp with a Summit K6901 cam (small!!!) and an Edelbrock Air Gap on a 360.
'70 Duster 470hp 340/T56 Magnum/8 3/4 3.23 Sure-Grip
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Re: 360 HEADS SWITCH!
[Re: HotRodDave]
#145422
11/20/08 10:59 PM
11/20/08 10:59 PM
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Joined: Apr 2007
Posts: 1,261
ILL
mark7171
pro stock
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pro stock
Joined: Apr 2007
Posts: 1,261
ILL
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My 323" 4spd 4dr has the standard 340"'s hp camshaft(.430/.444), and areohead 318 milled heads w/ factory iron adjustables, streetmaster edelbrock SP intake and stiff springed 770SA holley. The exhaust is summit headers and summit cheap mufflers ,with a 3.23 gear set in back. Has the "classic mopar muscle car" idle sound. With a RPM manifold and 600 holley it made 237 rwhp. It pulls the same as the first 4 gears of a 90's 5spd 5.0L mustang. My 323" is pretty impressive for a daily beater. My pistons were .060+/- down in the hole. The Aerohead performance 130cc 318 port (051?) 1.88/1.60 heads had 72 cc chambers, and could be angle milled (with an optional reset of the piston valve reliefs) , to the low 60's. You could make 8.8-9:1 compression easily with a 318 stock bottom. Most people are going to rebuild the heads anyways. I say why not? If you keep the RPMs under 5200-5500, its plenty. Have fun in the 14's, and smoking the 225/60 series tires. Make sure you know how to set up a advance w/ vacuum can, and set up a carb for street driving Better yet, for the same price as the rebuilt milled/ported Aerohead 318 heads($500), you can buy Magnum rebuilt heads complete. Aquire the PP airgap RPM copy, that works for both LA and magnum heads, is about $150 bucks. Get the pushrods, and your in bussiness with as much as 75 more hp. looky here, it's sleeping... 
Last edited by mark7171; 11/20/08 11:19 PM.
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Re: 360 HEADS SWITCH!
[Re: erick72]
#145424
12/19/08 08:07 PM
12/19/08 08:07 PM
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Joined: Jan 2003
Posts: 6,816
Alton, IL
Dakota_Don
master
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master
Joined: Jan 2003
Posts: 6,816
Alton, IL
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if you go with the mag heads, you can get a crosswinds intake that will fit both the LA head or the Magnum.. Heres what i would do.. 318+magnum heads+crosswinds intake, comp cam xe262 or 268H, a 650 carb, headers, a TC to mach the cam, and new lifters, and proper legnth pushrods and matching Valve springs, timing chain with a tensioner. you can get re-man mag heads from CMengines.com or new ones from engine quest. or if u wanna go cheap, 318+used 360heads milled a bunch, then you may need the intake serface milled as well. .028 head gasket, try to get a least 9.0 CR (talk to your shop) a 360 4 brrl TQ intake,or a rpm airgap or a crosswinds intake, a xe262 cam or a repo 340 stick shift cam and new lifters and springs, 360 exhuast manifolds or headers. I did this on a 68 318, the pistons on the 68 were flat tops with 4 valve reliefs. I think yours will be different. next one i do will be a LA magnum hybrid http://www.popularhotrodding.com/enginemasters/articles/mopar/0667em_mopar_318_engine/index.html
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Re: 360 HEADS SWITCH!
[Re: erick72]
#145425
12/19/08 08:09 PM
12/19/08 08:09 PM
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Joined: Jan 2003
Posts: 6,816
Alton, IL
Dakota_Don
master
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master
Joined: Jan 2003
Posts: 6,816
Alton, IL
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Quote:
so i need to get a hold of some magnum 360 heads from the 80s and i should be good.i have a singlr plain holley street dominator 4 barrel intake.anyone know if that will fit or any other intake that will?so the heads,a stock 340 cam and a 600 cfm cam and i could get as much as 75 more horse?or more?
mag heads are 90 somthing and up, if you get used ones have them checked for cracks
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Re: 360 HEADS SWITCH!
[Re: goldduster318]
#145427
12/19/08 10:01 PM
12/19/08 10:01 PM
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Joined: Jan 2003
Posts: 25,200
Upper Midwest
MoparforLife
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,200
Upper Midwest
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Quote:
I have a mismatched set of "587" and "915" 360 heads under the bench in my garage I practically can't give away...they came on the 360 I bought, which I switched to magnums because of the 8:1 pistons.
I can tell you one thing, I have some magnum heads that i literally just pulled off a '96 ram van and installed the r/t springs, bolted them on with the right stuff and the thing runs ridiculous....It probably easily makes 350hp with a Summit K6901 cam (small!!!) and an Edelbrock Air Gap on a 360.
they are vertually the same heads with different casting number. 915 used through 72 abd the 587 in 73 for a couple of years. No real difference. You would never tell the difference using them together.
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