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Valve clearance?

Tiny
DIRTFLOORGARAGE
  • MEMBER
  • 1981 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 85,000 MILES
So, I’ve been watching the LM7 build, and I was curious if the summit pro LS pistons would be compatible with a.600 lift cam, I’m using stock 799 heads but upgraded springs rockers ect.
Wednesday, November 30th, 2022 AT 5:32 PM

4 Replies

Tiny
RYAN L
  • ADMIN
  • 242 POSTS
Hey there!

Thanks so much for watching the series and using the site.

Yeah, it should ours is 231/242 113+3, .600/.600 Lift and it had enough clearance.

Best,
Ryan
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Thursday, December 1st, 2022 AT 12:39 PM
Tiny
DIRTFLOORGARAGE
  • MEMBER
  • 3 POSTS
My man! Thank you! The cam I’m using says 110 for centerline.
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Thursday, December 1st, 2022 AT 12:43 PM
Tiny
DIRTFLOORGARAGE
  • MEMBER
  • 3 POSTS
Here is a short video of the specs:
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Thursday, December 1st, 2022 AT 12:44 PM
Tiny
RYAN L
  • ADMIN
  • 242 POSTS
Yeah, should be all good. If you are really nervous about it, you can assemble the valvetrain on one piston with playdoh on top of the piston, rotate the engine over by hand slowly. Then remove the playdoh cut it in half to see how close the valve gets.

Here is our camshaft card so you can directly compare.
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Thursday, December 1st, 2022 AT 12:49 PM

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