What Springs, Etc?
Thread Starter
Melting Slicks
Joined: Feb 2008
Posts: 3,286
Likes: 6
From: Palm Beach
What Springs, Etc?
I have the engine out of my LT4 and plan to do a cam swap. I am looking at max lift of 0.536 and think that may max out the stock LT4 springs.
What is a good aftermarket spring to use?
Locks?
Retainers?
I plan to keep the stock valves and go with Comp Pro Mag lifters.
Any ideas. Lloyd Elliot suggested Crane Double Springs 99893 and Comp 10 deg retainers and locks. Do I really need the 10 deg retainers?
What is a good aftermarket spring to use?
Locks?
Retainers?
I plan to keep the stock valves and go with Comp Pro Mag lifters.
Any ideas. Lloyd Elliot suggested Crane Double Springs 99893 and Comp 10 deg retainers and locks. Do I really need the 10 deg retainers?
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
Part #'s for use with 99893 springs.http://http://cranecams.com/pdf/Page633-634.pdf
If your interested I've got a brand set of new "LT4 hot cam" valve springs, locks & retainers I bought off of CF member Firevette in the F/S section about a year ago. I never installed them and they are still in the same box they were shipped in. I went with a different way with my setup so they are just sitting on the shelf. Give'em to you cheap if you want them. I believe they are good to .540 if I remember right.
If your interested I've got a brand set of new "LT4 hot cam" valve springs, locks & retainers I bought off of CF member Firevette in the F/S section about a year ago. I never installed them and they are still in the same box they were shipped in. I went with a different way with my setup so they are just sitting on the shelf. Give'em to you cheap if you want them. I believe they are good to .540 if I remember right.
Last edited by engle1147; Apr 21, 2010 at 02:15 PM.
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
I need a bit more lift myself. Tip - wait to order your roller rockers until you have choosen/ gotten your spring set and your sure of the OD of your new springs. OD of a spring will often vary with higher spring tension ratings.
Thread Starter
Melting Slicks
Joined: Feb 2008
Posts: 3,286
Likes: 6
From: Palm Beach
Unless someone talks me out of it I will go with the Crane 99893 doubles. Crane 99630 10 deg titanium retainers and locks.
I was looking at the new Crane Ultra Pro Mags but they don't list an application for 7/16 for the LTX. I may have to use 3/8. I have to buy new rocker studs eitherway.
I was looking at the new Crane Ultra Pro Mags but they don't list an application for 7/16 for the LTX. I may have to use 3/8. I have to buy new rocker studs eitherway.
