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Username Post: Piston to valve clearance        (Topic#344526)
Chevelless70 
Forum Newbie
Posts: 16

Loc: Somerset MA
Reg: 03-23-17
05-05-17 05:25 PM - Post#2689748    

Does it matter which cylinder you check for piston to valve clearance? I measured #2.

Thx




 
Ecklers AutoMotive
grumpyvette 
Senior Chevytalk Moderator -- Performance Subject Matter Expert --
Posts: 17384
grumpyvette
Age: 71
Loc: FLORIDA USA
Reg: 03-16-01
05-05-17 06:04 PM - Post#2689751    
    In response to Chevelless70

if you have a minimum of .120 on both the intake and exhaust valve on that #1 and #2 cylinder (one on each bank) I think youll be ok, measuring just that cylinder , if either the intake or exhaust valve has less than .100 ID measure all the cylinders just to be sure!
don,t forget to verify the valve edge to valve pocket clearance along with the valve face too piston deck clearances

http://garage.grumpysperformance.com/index.php?thr...

http://garage.grumpysperformance.com/index.php?thr...

IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!


 
Chevelless70 
Forum Newbie
Posts: 16

Loc: Somerset MA
Reg: 03-23-17
05-05-17 06:31 PM - Post#2689756    
    In response to grumpyvette

#2 cylinder measured
Intake .290
Exhaust .300

Is that too much clearance?
Measured with .039 compressed gasket.



 
grumpyvette 
Senior Chevytalk Moderator -- Performance Subject Matter Expert --
Posts: 17384
grumpyvette
Age: 71
Loc: FLORIDA USA
Reg: 03-16-01
05-05-17 06:47 PM - Post#2689757    
    In response to Chevelless70

thats PLENTY of clearance if you got that with the valves properly adjusted while rotated the engine a full 720 degrees and measure the distance the open valve and pistons
you obviously have a reasonably low compression and mild cam

IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!


 
Chevelless70 
Forum Newbie
Posts: 16

Loc: Somerset MA
Reg: 03-23-17
05-05-17 06:52 PM - Post#2689758    
    In response to grumpyvette

Compression is 9.7
Cam edlebrock 560/573




 
grumpyvette 
Senior Chevytalk Moderator -- Performance Subject Matter Expert --
Posts: 17384
grumpyvette
Age: 71
Loc: FLORIDA USA
Reg: 03-16-01
05-07-17 10:35 AM - Post#2690046    
    In response to Chevelless70

http://www.cranecams.com/product/cart.php?m=produc...

http://www.cranecams.com/userfiles/PP0811A_Sin gleP...

that sounds like your using a cam similar to an early l88 style cam, which was designed to run in a 10.5-11:1 compression engine

IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!


Edited by grumpyvette on 05-07-17 10:36 AM. Reason for edit: No reason given.

 
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