Re: Poly motors?

[Dave Casey <dcasey@xxxxxxxxxxxxx>]

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A poly should cost the same to rebuild as an LA so long as you don't mind
cast pistons. Otherwise, the poly will cost more unless you were going to
get custom pistons for the LA engine. The cam might cost a little more, but
that's negligible. Machine work should be the same. If you replaced the
rockers and shafts, the poly would again cost more.
Sure, building a 383 costs the same as a 440, but building a 361, 413, or a
less than .060 over 426 wedge will always cost more than the 383 or 440
because of the price of pistons.

Dave Casey

----- Original Message ----- 
From: "Gary H." <62to65mopar@xxxxxxxxxxx>
To: <1962to1965mopars@xxxxxxxxxx>
Sent: Friday, May 28, 2004 10:33 PM
Subject: RE: Poly motors?


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Welcome to Mopars, Tim!

Cost always depends on how fast you want to go and subsequent machine
shop / parts co$t.

Sounds like you already have some "air in" improvements over the usual
2bbl Poly 318 setup. You may need to just get a bumpier cam and some
exhaust headers via dual pipes to help pump spent exhaust out. That's
usually enough for a real fun street ride.

Don't forget to figure in the price of buying a 360 motor to put in, as
well as the changes needed to install it. That cost may cancel out any
parts and machine shop pricing differences.

People say it costs about the same to rebuild a 383 or a 440.
Anyone know if that's true for basic rebuilding of a Poly 318 vs basic
rebuilding a LA 318? Anyone?

Gary H.

tdanbrea wrote:
>
>
> Being kind of new to the mopar scene( i used to be a chevy guy )i have a
> question on the poly motors,mine already has the Weiand 7503
> and a 600cfm performer carb,should i stick my time and money into it
> to"wake it up" or would i be better off looking for a 318 to 360 to work
> with.I have read the articles on building the poly but none realy
> mention what the cost is to do a build up on one.
> Thanks
> Tim
> 1964 Polara

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Please address private mail -- mail of interest to only one person -- directly to that person.  I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic.  Thanks!

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