Re: 318 builds
[Re: 1bad318]
#1030322
07/12/11 12:09 AM
07/12/11 12:09 AM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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No real numbers on mine, so I dont know the output, bit I'd guess it's around 300hp for pretty cheap
Magnum engine, EFI, heads shaved .020, 220 duration cam w .512 lift on a 114 LSA. M1 single plane intake, and headers
With a bigger cam and heads that flow, I bet 400 is reachable... But again, dollar for dollar, start w a 360!!
If you got a 318, use it. If starting fresh, hit the yards for a magnum 5.9 lots of vans, full size trucks, jeeps, and durangos had 5.9s in them. Finding one in a yard should be easy and fairly cheap
**Photobucket sucks**
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Re: 318 builds
[Re: moretork03]
#1030324
07/12/11 05:05 AM
07/12/11 05:05 AM
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Joined: May 2008
Posts: 5,399
Aurora, Colorado
451Mopar
master
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master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
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Poly, LA, or Magnum?
Here is a 318 build I once thought about doing:
318 engine square decked to 9.590" deck height, stock 3.31" stroke and 6.123" length rods.
KB Icon 844 forged flatop pistons, 3.950" bore, 0.040" head gasket, approx 11:1 compression with 52cc heads, 0.040-0.042" quench distance.
RHS/Indy or Iron ram magnum heads, full ported, would like to see about 300 cfm?, milled to 50-52cc chamber volume. Hughes is about $2K for the heads?
1.6:1 rocker arms, 3/8" pushrods,
Comp MM series solid #6589 intake 297/271/0.669", #6588 exhaust 293/267/0.658", 112 lsa, installed around 106 degrees?
Edelbrock Victor intake, and holley 950 HP carb.
Estimate HP = 574 @ 7,000 RPM, 469 ft/lbs @ 5,500 RPM.
Estimate cranking cylinder pressure = 157 psi (intake closing @ 74.5 degrees ABDC.) with the 0.040" quench it should run on pump gas?
TTI 1-3/4" step headers.
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Re: 318 builds
[Re: 451Mopar]
#1030325
07/12/11 10:41 AM
07/12/11 10:41 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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Quote:
Poly, LA, or Magnum?
Here is a 318 build I once thought about doing:
318 engine square decked to 9.590" deck height, stock 3.31" stroke and 6.123" length rods.
KB Icon 844 forged flatop pistons, 3.950" bore, 0.040" head gasket, approx 11:1 compression with 52cc heads, 0.040-0.042" quench distance.
RHS/Indy or Iron ram magnum heads, full ported, would like to see about 300 cfm?, milled to 50-52cc chamber volume. Hughes is about $2K for the heads?
1.6:1 rocker arms, 3/8" pushrods,
Comp MM series solid #6589 intake 297/271/0.669", #6588 exhaust 293/267/0.658", 112 lsa, installed around 106 degrees?
Edelbrock Victor intake, and holley 950 HP carb.
Estimate HP = 574 @ 7,000 RPM, 469 ft/lbs @ 5,500 RPM.
Estimate cranking cylinder pressure = 157 psi (intake closing @ 74.5 degrees ABDC.) with the 0.040" quench it should run on pump gas?
TTI 1-3/4" step headers.
sounds like a good combo, but I'd guess the simulated power to be ~ 10% high....1.44 lb-ft per CID is very tough to do without a power adder.
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 builds
[Re: patrick]
#1030326
07/12/11 07:51 PM
07/12/11 07:51 PM
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Joined: Jan 2003
Posts: 4,323
NY NY
340duster340
master
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master
Joined: Jan 2003
Posts: 4,323
NY NY
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Is this for more of a performanc builde build or more of a budget?
Imo it's worth starting with more cubes always if star all possible...especially since core 360s are pretty cheap.
Last edited by 340duster340; 07/12/11 07:52 PM.
1966 Dart GT
...down to only 1 mopar for the first time in 15 years!
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