The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain

Web 67-72chevytrucks.com


 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 11-08-2011, 02:34 PM   #1
big72red
Registered User
 
Join Date: Sep 2005
Location: New Salisbury, IN
Posts: 41
GM LT4 "hot cam" questions

Has anyone on here had experience with this cam in a 350? I have a 350HO crate motor in my DD. It has a hydraulic flat tappet cam in it right now. I know that my engine shares the same block as the other factory roller cam blocks. I'm cosidering swapping the hot cam into my engine. I have a couple of questions though.

1. I know I'll need the cam, hydraulic roller lifters, "spyder" retainer, and valvesprings (going to use the Comp beehives for LS motors because they are said to go right onto to Vortec heads without machining). Assuming I will need shorter pushrods? Am I missing anything guys?

2. GM recommeds 1.6 rockers with this cam. All the specs on the cam are measured with 1.6 rockers as well. I'm thinking that I may go with 1.5 rockers to eliminate the need to enlarge the pushrod holes in the heads. I'd really prefer to swap this cam without pulling the heads. Valve lift with the 1.6s is .525" so it should measure .492" with 1.5s. Has anyone run this cam with 1.5 rocker arms?

Those are the questions....gimme your oppinions guys. Thanks in advance.
big72red is offline   Reply With Quote
 

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 09:30 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com