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 Post subject: Major thrust side?
PostPosted: Sun Jul 01, 2018 1:23 pm 
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Board Sponsor & SL6 Racer

Joined: Wed Oct 23, 2002 7:57 pm
Posts: 8284
Location: Waynesboro, Pa.
Car Model: 65 Valiant 2Dr Post
Which side of our engine is the major thrust side? The lifter side?

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 Post subject: Re: Major thrust side?
PostPosted: Sun Jul 01, 2018 2:53 pm 
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Turbo EFI

Joined: Sat Feb 20, 2010 10:23 am
Posts: 1321
Location: N. Ga.
Car Model: 64 Valiant
The major thrust side is always in the leading direction of crank rotation, so in a standard clockwise rotation inline engine it is always the drivers side of the cylinder. In a standard rotation V engine, it is the lifter valley side of the cylinders on the passenger side and the spark plug side of the cylinders on the drivers side of the block. So if you are sonic checking a block, that will help determining if you need to offset bore the block to maximize wall thickness.

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 Post subject: Re: Major thrust side?
PostPosted: Sun Jul 01, 2018 5:30 pm 
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Board Sponsor & SL6 Racer

Joined: Wed Oct 23, 2002 7:57 pm
Posts: 8284
Location: Waynesboro, Pa.
Car Model: 65 Valiant 2Dr Post
Quote:
drivers side of the cylinder.


Thanks!

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2 Mopars come with Spark plug tubes. One is a world class, racing machine. The other is a 426 CI. boat anchor!
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12.70 @ 104.6
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 Post subject: Re: Major thrust side?
PostPosted: Mon Jul 02, 2018 4:34 am 
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TBI Slant 6
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Joined: Thu Apr 07, 2016 9:15 am
Posts: 193
Location: Rhode Island
Car Model: 1968 Barracuda - Fastback
CNC Dude, awesome answer! That's easy to remember.

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 Post subject: Re: Major thrust side?
PostPosted: Mon Jul 02, 2018 7:33 am 
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Turbo EFI

Joined: Sat Feb 20, 2010 10:23 am
Posts: 1321
Location: N. Ga.
Car Model: 64 Valiant
No problem! Glad to help.

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