Author Topic: 360 build problem  (Read 1045 times)

Offline mentally_challenger

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360 build problem
« on: March 13, 2006 - 09:23:07 PM »
im buildin my first engine for my 70 challenger. Its a .040 over 360 thats had the stock bottem end balanced. the pistons are hypereutectic and are 9:8.1 with my stock heads with 70cc chambers, i bought edelbrock 6079 heads with 65cc chambers. how much of a compression raise will this be?




Offline Chryco Psycho

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Re: 360 build problem
« Reply #1 on: March 13, 2006 - 10:59:05 PM »

Challenger - You`ll wish You Hadn`t

Offline Rob C

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Re: 360 build problem
« Reply #2 on: March 14, 2006 - 07:41:49 AM »
A minor increase. Not a stupid newbie question. A very good one to honest.
'73 Cuda, 360, 4psd & 4.10's
'79 Dodge Magnum, 360, 727, 9-1/4 W/3.55's

Offline dimples

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Re: 360 build problem
« Reply #3 on: March 14, 2006 - 10:09:14 PM »
Are the pistons flat tops, and included in the raise? Or were the heads put on after the new pistons ran on the old heads.
Just asking.
If I remember, the Dish going away is like a half of a point, about................

Offline mentally_challenger

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Re: 360 build problem
« Reply #4 on: March 14, 2006 - 11:57:43 PM »
thanks for the quick replys, the pistons are dish and are 9:8.1 with the cast heads, with the aluminum heads and the iron block i wonder about kinda of  head gasket should i run?

Offline Chryco Psycho

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Re: 360 build problem
« Reply #5 on: March 15, 2006 - 12:59:22 AM »
no choice you need Cometic gaskets , unless you enjoy changing head gaskets ????

Challenger - You`ll wish You Hadn`t

Offline dimples

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  • (dodgetkboy78)
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Re: 360 build problem
« Reply #6 on: March 15, 2006 - 03:41:06 PM »
Agree, the composite Fel-Pro ones always blow out between the cylinders for me...................

Offline Rob C

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Re: 360 build problem
« Reply #7 on: March 15, 2006 - 06:33:49 PM »
Never a problem with the Fel-Pros, but I'll not argue with the use of a Cometic.
'73 Cuda, 360, 4psd & 4.10's
'79 Dodge Magnum, 360, 727, 9-1/4 W/3.55's

Offline dimples

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  • (dodgetkboy78)
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Re: 360 build problem
« Reply #8 on: March 15, 2006 - 07:33:02 PM »
I shouldn't have said always, LOL. But it is on the 318's, and not the 360's. I almost wonder if it has something to do with the smaller bore........(sealing ring being farther from the cylinder?)
Who knows.