comp cams 224/230 pushrod length?
11-15-2007, 06:48 PM
#2
Um, yeah, probably. Did you keep stock heads? Head gasket thichness, heads milled or not and what base circle on the cam you have (XE, XER, XFI, LSK all have different base circles) will decide what pushrods you need.
I am putting in an XE 224° 230° (1.474" and 1.492" base circles) with .040" gaskets and .035" milled off the heads. I will be able to reuse the 7.4" Comp pushrods I already have.
I am putting in an XE 224° 230° (1.474" and 1.492" base circles) with .040" gaskets and .035" milled off the heads. I will be able to reuse the 7.4" Comp pushrods I already have.
11-15-2007, 07:19 PM
#3
Teching In
Thread Starter
Join Date: Nov 2007
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
It is a XE-R. It is in a bone stock motor, asides from a set of comp #26918 springs. I was thinking maybe theres not enough preload on the lifters with stock pushrod length?
I dont know if that would be the cause for the noise.
I dont know if that would be the cause for the noise.
11-15-2007, 08:31 PM
#5
Then yes, you HAVE to have longer pushrods.
11-16-2007, 04:09 AM
#7
You want longer pushrods when installing a cam with a smaller base circle like XE-R lobes. A 7.425-7.450" pushrod works best for most aftermarket cams (where a really high lift cam with LSK lobes would need the longest PRs).
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
Trending Topics
11-16-2007, 08:17 PM
#8
Teching In
Join Date: Dec 2006
Location: Bastrop, Texas
Posts: 34
Likes: 0
Received 0 Likes
on
0 Posts
11-17-2007, 02:36 AM
#10
TECH Senior Member
