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Re: 318 build!!!!!!!!!!!!!!!!!!!!
[Re: mopowered]
#196727
01/18/09 12:25 PM
01/18/09 12:25 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've had both the Crosswind and the Edelbrock Air Gap...they look very similar and the crosswind did seal fine for me BUT the Air Gap is so much better quality and doesn't make as many "cooling noises" when you shut the engine off.
I have some boneyard magnum heads that I pulled myself, and they're fine...not cracked. I will say that if you run nearly any cam that's not a stock cam you'll have to change the valvesprings. I also had to grind away some casting flash on the OEM heads for pushrod clearance. I use the Summit Racing (I believe they are made by comp or crane) 7.650" Chromemoly pushrods and they are much higher quality than the MP's. Stock rockers, old "LA" M/T Valve covers, and everything seals up great.
'70 Duster 470hp 340/T56 Magnum/8 3/4 3.23 Sure-Grip
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Re: 318 build!!!!!!!!!!!!!!!!!!!!
[Re: goldduster318]
#196728
01/18/09 03:26 PM
01/18/09 03:26 PM
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Joined: Jul 2008
Posts: 580
Detroit,Michigan USA!
erick72
OP
mopar
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OP
mopar
Joined: Jul 2008
Posts: 580
Detroit,Michigan USA!
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ok let me get this straightl.ive had so many mixed answers i get magnum heads,i clean them,leave the stock rockers on there,put them on the engine with different head bolts since i heard there different,them i go to mancini ask for the pushrods and lifters for this setup and install those,then i get the crosswind or edelbrock intake,set it on seal it up install it,throw a carb on there and fire it up? is this right or am i missing something i really thank you guys for this help!  like you don't even know! 
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Re: 318 build!!!!!!!!!!!!!!!!!!!!
[Re: erick72]
#196731
01/18/09 03:36 PM
01/18/09 03:36 PM
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Joined: Jan 2003
Posts: 9,826
las vegas
70AARcuda
master
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master
Joined: Jan 2003
Posts: 9,826
las vegas
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you will need to replace the hydraulic lifters ...
HT-2011 is the part number from summit
you will need new pushrods..they must oil the rocker arms thru the pushrods..
the one MP sells...alot of people say they are too short...
Tony
70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
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Re: 318 build!!!!!!!!!!!!!!!!!!!!
[Re: 70AARcuda]
#196733
01/18/09 03:39 PM
01/18/09 03:39 PM
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Joined: Jan 2003
Posts: 9,826
las vegas
70AARcuda
master
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master
Joined: Jan 2003
Posts: 9,826
las vegas
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Last edited by 70AARcuda; 01/18/09 03:48 PM.
Tony
70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
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Re: 318 build!!!!!!!!!!!!!!!!!!!!
[Re: erick72]
#196735
01/18/09 03:49 PM
01/18/09 03:49 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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you will need:
Magnum Heads
Magnum Head Bolts
Magnum Compatible Intake Manifold
Magnum Intake manifold bolts
Aftermarket/AMC type oil through pushrod lifters
7.650" length pushrods
Magnum rocker arms (these are different from the originals)
318 Cylinder Head Gasket
Magnum Intake Gasket (I recommend the edelbrock one)
Valve Cover gaskets (use "LA" gaskets for 5-bolt covers and Magnums for 10 bolt covers)
Exhaust Manifold or Header Gaskets
Auto cars will also need the kickdown linkage modified or replaced with a cable.
be sure to test fit the heads and pushrods and make sure that the pushrods have adequate clearance as they pass through the heads
'70 Duster 470hp 340/T56 Magnum/8 3/4 3.23 Sure-Grip
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Re: 318 build!!!!!!!!!!!!!!!!!!!!
[Re: RoyceFlo73]
#196738
01/18/09 04:38 PM
01/18/09 04:38 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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Its extremely hard to run factory kickdown linkage with a tall intake like the RPM air gap or the crosswind, and you'd still have to customize the bracket since the magnum has vertical intake bolt holes.
'70 Duster 470hp 340/T56 Magnum/8 3/4 3.23 Sure-Grip
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Re: 318 build!!!!!!!!!!!!!!!!!!!!
[Re: goldduster318]
#196739
01/18/09 04:48 PM
01/18/09 04:48 PM
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Joined: Jul 2003
Posts: 4,779
Holland MI Ottawa
2boltmain
master
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master
Joined: Jul 2003
Posts: 4,779
Holland MI Ottawa
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Rebuild your tranny and add a full manual VB with a B&M or Hurst cable shifter. No more kickdown linkage. Its fun to bang gears with the full manual and youll be set for future hp upgrades.
Keep old mopars alive.
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Re: 318 build!!!!!!!!!!!!!!!!!!!!
[Re: 2boltmain]
#196740
01/19/09 01:23 AM
01/19/09 01:23 AM
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Joined: Jul 2008
Posts: 580
Detroit,Michigan USA!
erick72
OP
mopar
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OP
mopar
Joined: Jul 2008
Posts: 580
Detroit,Michigan USA!
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i do have a ratchet shifter cable ran by a steel cable!
so i have to modify the kickdown bracket.has anyone done this?
could i install a manual valve body?is it that hard?
also is a bone stock 340 cam gonna work,cause i don't wanna change out the valve springs ont he magnum heads im gonna be purchasing soon.
Last edited by erick72; 01/19/09 03:43 AM.
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Re: 318 build!!!!!!!!!!!!!!!!!!!!
[Re: erick72]
#196741
01/19/09 09:53 AM
01/19/09 09:53 AM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
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ok, for heads, contact www.cmengines.com ask for a quote for some enginequest 318B heads with oem valves & keepers and GM3100 springs and retainers set up at 1.65" IH. I'd walk away from the chinese heads, I'd go for rebuilt OEM over those. the EQ 318 heads are magnum heads, made in new zeeland and sold as "iron rams" by hughes. last year I got a quote from CME for $650/pr set up like this. the 318B uses an LA intake pattern. for a 318 I'd use an eddie performer intake (can find used for about $100). I'd snag some junkyard rocker arms. the GM 3100 springs are a beehive spring w/about 350 lb/in rate and a 1.065" coil bind height. search the "best of" section for "cheap magnum spring" for more info. for a cam, I'd probably look at a comp XE256. for kickdown, I modded my 2bbl kickdown to work with an eddie RPM air gap.....
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: 318 build!!!!!!!!!!!!!!!!!!!!
[Re: patrick]
#196742
01/19/09 09:59 AM
01/19/09 09:59 AM
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Joined: Sep 2005
Posts: 5,117
Haslett, MI
7DRRunner
master
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master
Joined: Sep 2005
Posts: 5,117
Haslett, MI
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there's a article in the Winter 2008 edition of Engine Masters magazine
they build a 400HP 318 LA series block on a working man's budget
FYI
"Good luck on your project."
1970 Road Runner
"Accellertii Incredibus"
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Re: 318 build!!!!!!!!!!!!!!!!!!!!
[Re: patrick]
#196743
01/19/09 04:55 PM
01/19/09 04:55 PM
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Joined: Jul 2008
Posts: 580
Detroit,Michigan USA!
erick72
OP
mopar
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OP
mopar
Joined: Jul 2008
Posts: 580
Detroit,Michigan USA!
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Quote:
ok, for heads, contact www.cmengines.com ask for a quote for some enginequest 318B heads with oem valves & keepers and GM3100 springs and retainers set up at 1.65" IH.
I'd walk away from the chinese heads, I'd go for rebuilt OEM over those.
the EQ 318 heads are magnum heads, made in new zeeland and sold as "iron rams" by hughes. last year I got a quote from CME for $650/pr set up like this. the 318B uses an LA intake pattern. for a 318 I'd use an eddie performer intake (can find used for about $100). I'd snag some junkyard rocker arms.
the GM 3100 springs are a beehive spring w/about 350 lb/in rate and a 1.065" coil bind height. search the "best of" section for "cheap magnum spring" for more info.
for a cam, I'd probably look at a comp XE256.
for kickdown, I modded my 2bbl kickdown to work with an eddie RPM air gap.....
ok.i found some used ones for 50 bucks plus shipping.they were off a running car.with rocker arms! im gonna snag those.
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