Clearance piston to valve - Page 2

Ed Wright · 06-14-2015, 08:51 PM

To answer your original question: I would not try to run it that close. Closest I have ever run my SS LT1 is .036" intake (I prefer .040") and .065" ex, measured with checking springs, using a dial indicator, not clay.

Tom Moock · 06-14-2015, 09:08 PM

ghost, Did you check valve clearance with valve springs that you are going race with? you need a solid roller lifter the same height as your hydraulic roller to check cam lift & valve clearance, you will have more valve clearance with heavy springs. Tom

ghost · 06-14-2015, 09:35 PM

Thanks for your help

tomorow, i check again with my race springs and solid lifters with same height

Ed Wright · 06-15-2015, 08:40 AM

Doubt race springs will get him enough clearance.

ghost · 06-15-2015, 06:04 PM

after checking carefully with RACE spring . i have .038int and .065exh at 101.5 timing. Is tight but O.K. for my application

Thank's again

Ed Wright · 06-15-2015, 07:00 PM

That is close with race springs. Hope it goes well for you.

06-14-2015, 08:51 PM	#11
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 389 Times in 168 Posts	Re: Clearance piston to valve To answer your original question: I would not try to run it that close. Closest I have ever run my SS LT1 is .036" intake (I prefer .040") and .065" ex, measured with checking springs, using a dial indicator, not clay. __________________ Ed Wright 4156 SS/JA

06-14-2015, 09:08 PM	#12
Tom Moock Senior Member Join Date: May 2004 Posts: 801 Likes: 1 Liked 10 Times in 6 Posts	Re: Clearance piston to valve ghost, Did you check valve clearance with valve springs that you are going race with? you need a solid roller lifter the same height as your hydraulic roller to check cam lift & valve clearance, you will have more valve clearance with heavy springs. Tom __________________ Tom Moock 5704 STK

06-14-2015, 09:35 PM	#13
ghost Junior Member Join Date: Oct 2012 Posts: 79 Likes: 0 Liked 16 Times in 11 Posts	Re: Clearance piston to valve Thanks for your help tomorow, i check again with my race springs and solid lifters with same height

06-15-2015, 08:40 AM	#14
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 389 Times in 168 Posts	Re: Clearance piston to valve Doubt race springs will get him enough clearance. __________________ Ed Wright 4156 SS/JA

06-15-2015, 06:04 PM	#15
ghost Junior Member Join Date: Oct 2012 Posts: 79 Likes: 0 Liked 16 Times in 11 Posts	Re: Clearance piston to valve after checking carefully with RACE spring . i have .038int and .065exh at 101.5 timing. Is tight but O.K. for my application Thank's again

06-15-2015, 07:00 PM	#16
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 389 Times in 168 Posts	Re: Clearance piston to valve That is close with race springs. Hope it goes well for you. __________________ Ed Wright 4156 SS/JA