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06-14-2015, 01:30 PM | #1 |
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Clearance piston to valve
Hi
I need information. On my B/SA 1995 Camaro with LT1. At 101.5 timing, the valve clearance to piston is .018 int and .053 on exh. It is too tight or is normal. If i back the cam at 106, i have 32 int and 36 exh. All with .039 head gasket. what you do with this? Thank for your help |
06-14-2015, 02:20 PM | #2 |
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Re: Clearance piston to valve
How are you measuring that ? Light checking spring, or clay, do you have a welded lifter ?
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06-14-2015, 03:10 PM | #3 |
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Re: Clearance piston to valve
This is Roller Hydro. but I checked the lash with light spring and solid roller lifter. but i have same result with light spring and roller hydro.
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06-14-2015, 03:35 PM | #4 |
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Re: Clearance piston to valve
what is the total deck, head gasket and piston depth?
Also what is cam ground on? |
06-14-2015, 04:13 PM | #5 |
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Re: Clearance piston to valve
Mark you have a pm.
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Joe DeMarzo 1317 STK |
06-14-2015, 04:45 PM | #6 |
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Re: Clearance piston to valve
deck is .015 gasket .039 total .054.
but i want know? Have you ever seen this in stock eliminator for a hydraulic roller cam? |
06-14-2015, 06:36 PM | #7 |
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Re: Clearance piston to valve
Late model LT-1 minimum total deck with gasket is.062" IIRC. Your short .008" and would fail a tear down. I had one and built my own engine and had plenty of clearance with CP pistons and a Bullet cam. That cam was pretty aggressive so it seems odd to me you would have so little clearance.
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Rich Biebel S/C 1479 Last edited by Rich Biebel; 06-14-2015 at 06:40 PM. |
06-14-2015, 07:21 PM | #8 |
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Re: Clearance piston to valve
Same thing I was thinking Rich.
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Lee Valentine 1661 STK |
06-14-2015, 07:52 PM | #9 |
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Re: Clearance piston to valve
I run with with Fel-Pro 9966 pt the thickness is .049 not .039 (it is my mistake) But it changes nothing to my question.
Rich ... you don't need to swear at me |
06-14-2015, 07:52 PM | #10 |
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Re: Clearance piston to valve
It's been quite a while since I had that LT-1 Stocker Lee but I do recall doing that engine and being real happy I did not have to worry about a tight P-V issue. Still wish I had one as they are great fun to drive. Not fun to work on! Swear at you ? I don't have a clue as to what that statement means.
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Rich Biebel S/C 1479 Last edited by Rich Biebel; 06-14-2015 at 07:57 PM. |
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