pushrod length
09-22-2010, 10:00 AM
#1
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pushrod length put a new cam/milled 243 heads(.030) w/.041 head gasket on my 5.3. ordered 7.375 p/r. Got everything in and when we started it, it made alot of valvetrain noise and didn't get any quieter after about a minute. I reinstall the factory p/r (7,4 iirc) fired her up and noise went away after about 30 seconds. seems to run fine, w/minimal noise if any. question is: am i getting all of the performance out of the cam/head combo. cam is 218/222 w/.598 lift.
09-22-2010, 10:08 AM
#2
Did you measure with a PR length checker? You should be using something a lot shorter than 7.375 for that combo. You not only milled the heads .030", but you're also using thinner head gaskets. Total, your about .042" lower than stock. I'm .035" lower than stock and am using 7.325 PRs.
09-22-2010, 10:33 AM
#3
Did you measure with a PR length checker? You should be using something a lot shorter than 7.375 for that combo. You not only milled the heads .030", but you're also using thinner head gaskets. Total, your about .042" lower than stock. I'm .035" lower than stock and am using 7.325 PRs.
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Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
