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Old 11-09-2017, 12:45 PM   #1
Coleydog
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Default Re: 318 poly

Finding a cam for one would be a nightmare, but they are solids and adj rockers. Read of a builup on one of these engines, a little head work, cam and good intake, made over 500 hp. Briggs and Stratton valves in them.
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Old 11-09-2017, 03:33 PM   #2
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Default Re: 318 poly

The 62 4 barrel would be great if it were rated around 220. Other than the lifter layout for the canted valves, the shortblock is no different than an LA 318 or 340, it uses the same AFB as the 361/305 with 1.84/1.56 valves and these engines can be had for free although the mani is usually few hundred. Find a clean 62 Dodge or Plymouth 2 or 4 dr and have fun.
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Old 11-09-2017, 10:19 PM   #3
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Default Re: 318 poly

I was thinking of the 2 bbl combo in a A body. Well tuned that combo produces a strong torque curve. With a B&B motor and a stocker cam???? How easy to convince NHRA for a 318 LA rating?
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Old 11-09-2017, 11:28 PM   #4
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Default Re: 318 poly

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Originally Posted by House of Darts View Post
I was thinking of the 2 bbl combo in a A body. Well tuned that combo produces a strong torque curve. With a B&B motor and a stocker cam???? How easy to convince NHRA for a 318 LA rating?
They were never made as far as I know, the A's got the 273.
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Old 11-09-2017, 11:52 PM   #5
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Default Re: 318 poly

No A body poly 318 every produced.
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Old 11-10-2017, 11:46 AM   #6
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Default Re: 318 poly

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No A body poly 318 every produced.
This is the new era of NHRA that doesn't matter just send a letter and have it added anyway.
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Old 11-17-2017, 10:24 AM   #7
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Default Re: 318 poly

A bodies never got the 318 poly, just the B bodies and trucks.

As far as I know, Schneider Cams will grind you any spec. poly cam you want. They will regrind your cam and I think they still have cam blanks.

The bottom end of the poly motor is the same as the LA motor. Crank, rods, etc. are all the same.
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Old 11-09-2017, 11:59 PM   #8
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Default Re: 318 poly

1962 318 4 bl at 260 the way I read class guide.
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Last edited by GTX JOHN; 11-10-2017 at 12:02 AM.
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Old 11-10-2017, 01:17 AM   #9
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Default Re: 318 poly

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Originally Posted by GTX JOHN View Post
1962 318 4 bl at 260 the way I read class guide.
A 62 dart is a B Body
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Old 11-10-2017, 11:14 AM   #10
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Default Re: 318 poly

I know that (I raced a 62 Dart Wagon in G/SA).........I was trying to highlight was that the 260 HP of poly way too high compared to 318 Thermoquad
at 230 HP with way superior CFM carb!!!

See my post #10
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Last edited by GTX JOHN; 11-20-2017 at 03:48 AM.
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