LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Need help determining pushrod length

Thread Tools
 
Search this Thread
 
Old Apr 14, 2004 | 10:37 AM
  #1  
NAZTLT1's Avatar
Thread Starter
Registered User
 
Joined: Feb 2002
Posts: 174
From: Cincinnati, Oh U.S.A.
Need help determining pushrod length

Did some searches but still not sure due to the cam and milled heads, so here goes.
Stock bottom end
GM847 cam 234/242
Comp promag rockers 1.6 -7/16 nsa
gmpp guideplates
comp-r lifters
k-800 springs
PP stock lt1 heads
The heads were milled/resurfaced when they went to the machine shop, but I don't remember by how much. I don't know if there is a rule of thumb when resurfacing heads that relates to how much is taken off .010 maybe? If that were the case, add to that, a cam with a pretty decent amount of lift 570ish/590ish with a 1.6 rocker (I think) and I'm starting to wonder if I should go with the stock length 7.2 or go to a 7.150 pushrod. Don't know how much valvetrain geometry will be affected in relation to pushrod length?
Your input please
Thanks
Old Apr 14, 2004 | 03:30 PM
  #2  
Serene's Avatar
Registered User
 
Joined: Sep 2003
Posts: 914
why dont you check it with a length checker instead of having someone guess for you?
Old Apr 14, 2004 | 03:33 PM
  #3  
Naegash's Avatar
Registered User
 
Joined: May 2001
Posts: 177
From: West Jordan, UT
Yea, really the only way to accuratley guage the length of pushrod that you need is to use a push rod length checker. You REALLY don't want to mess up your valve train geometry.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
13qtr
Parts For Sale
24
Oct 28, 2016 08:11 PM
9t4lt4z28
LT1 Based Engine Tech
1
Oct 2, 2015 10:28 AM
sleeperZ96BT
Parts For Sale
5
Sep 9, 2015 08:28 AM
realistyc
Cars For Sale
4
Jul 28, 2015 07:32 PM
94Form
LT1 Based Engine Tech
12
Jul 17, 2015 10:56 PM




All times are GMT -5. The time now is 06:29 AM.