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Re: 1965 318 Poly ? Rebuild or swap to LA 318?
[Re: HYPER8oSoNic]
#91393
05/31/10 12:10 AM
05/31/10 12:10 AM
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Joined: Jan 2007
Posts: 1,668
Mi,U.S.A.
mike s
top fuel
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top fuel
Joined: Jan 2007
Posts: 1,668
Mi,U.S.A.
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Camcraft also has cams for the poly.The cumbustion chamber is almost identical to the 2008 up 4.7L Chry V-8.The cyl heads can be ported to very close to the same numbers as an Edelbrock magnum with custom valves which are available.A friend is fabing an aluminum custom intake (single 4 bbl).Easy to stroke with available cranks.Overbore .060 easily more with sonic check.
Well worth the added expense.
Leave the gun.......take the Cannoli's....Mike
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Re: 1965 318 Poly ? Rebuild or swap to LA 318?
[Re: mike s]
#91394
05/31/10 01:21 PM
05/31/10 01:21 PM
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Joined: Jan 2003
Posts: 20,751
A collage of whims
topside
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,751
A collage of whims
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I have and have owned an example of every Mopar V8 in pretty much every size, up to the late '70s. I'd stick with the Poly, good engine. Have one now with 103K, stock, excellent street motor. IIRC, the '65 Torqueflite has some 1-year-only features, primarily in the shift mechanism.
I'd be inclined to run a stock cam in a car that heavy, and find or adapt a higher-ratio rocker to get some lift; you'd maintain strong vacuum but pick up HP & TQ. Should be a junkyard or swap meet 4-bbl intake somewhere, and improving the exhaust of course helps.
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Re: 1965 318 Poly ? Rebuild or swap to LA 318?
#91395
05/31/10 03:44 PM
05/31/10 03:44 PM
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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:
Quote:
Were any of the LA 318s internally balanced? We would have to use the 65 torque converter, so if the newer 318s are externally balanced, we would need to add a weight to the old converter, correct?
All the poly 318's were internally balanced, as were all LA 318's until ???? AFAIK, the late magnum 318's are also internally balanced, but I could be wrong.
all 318's are internal balanced....an LA top end bolts to a poly block, too, you just need an LA cam...
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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: 1965 318 Poly ? Rebuild or swap to LA 318?
[Re: Dennis_K]
#91397
06/01/10 07:15 AM
06/01/10 07:15 AM
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Joined: Sep 2006
Posts: 1,139
West Tennessee
rbstroker
super stock
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super stock
Joined: Sep 2006
Posts: 1,139
West Tennessee
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I had a new 1965 Sport Fury in 1965. It had a 318 and AC. Made a few trips between Detroit and LA area. It was great on gas. I finally changed the 2bbl setup to a Carter AFB by using an earlier intake (1958 I think), had dual exhaust made up, and was very happy with the increase in performance. I didn't do it, but changing the 2.76 gear to a 3.23 would probably make a huge difference all by itself.
This is the land of the free
because of the brave
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Re: 1965 318 Poly ? Rebuild or swap to LA 318?
[Re: rbstroker]
#91398
06/01/10 09:25 PM
06/01/10 09:25 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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I'm wondering when someone will notice that the OP's question was posted two years ago. 
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Re: 1965 318 Poly ? Rebuild or swap to LA 318?
[Re: patrick]
#91400
02/28/13 08:49 AM
02/28/13 08:49 AM
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Joined: Mar 2005
Posts: 792
Earth
Rob C
super stock
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super stock
Joined: Mar 2005
Posts: 792
Earth
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Quote:
all 318's are internal balanced....an LA top end bolts to a poly block, too, you just need an LA cam...
Sorry for the thread revival, but while the Poly & LA head will bolt to each others respected blocks, there useage on each others blocks is a no way, now how, no go!
Water cooling ports are the issue.
Otherwise, the blocks are extremely close to each other. More like a evolution on the LA.
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Ain't it the truth? GOOD MOTOR. 
