My Question Is About The Comp Cams Camshaft, Lifters Springs, And Rocker Arms

My Camaro has been sitting for 25 years. It has a 400 CI SBC, T400 tranny, 10-bolt posi 3.73 gear. Before parking it 25 years ago, it ran 12.40s on 9 in slicks and open exhaust at Raceway Park. Unfortunately, I did nothing to my car before letting it sit all that time. My question is about the COMP CAMS camshaft, lifters springs, and rocker arms.
1. Camshaft - Roller Hydraulic Camshaft that I believe is okay to us after all these years. Do you agree?
2. Springs - I can not use my springs as I did not loosen rocker arms. I know the part number and COMP CAMs still makes them so I plan on buying new ones. Do you agree?
3. Lifters - These are Roller Hydraulic Lifters and I don't know if I can use them? COMP CAMs still makes them so should I buy new ones or can I use the old ones? I have no idea?
4. Rocker Arms - These are Roller Rockers and I believe I can use them. Do you agree?

Thanks for the advice, Kevin
 
My Camaro has been sitting for 25 years. It has a 400 CI SBC, T400 tranny, 10-bolt posi 3.73 gear. Before parking it 25 years ago, it ran 12.40s on 9 in slicks and open exhaust at Raceway Park. Unfortunately, I did nothing to my car before letting it sit all that time. My question is about the COMP CAMS camshaft, lifters springs, and rocker arms.


1. Camshaft - Roller Hydraulic Camshaft that I believe is okay to us after all these years. Do you agree?
AS USUAL INSPECT IT BEFORE USE< BUT THERES NO REASON THAT IT CAN,T BE USED IF ITS IN PRISTINE CONDITION


2. Springs - I can not use my springs as I did not loosen rocker arms. I know the part number and COMP CAMs still makes them so I plan on buying new ones. Do you agree?
YES ITS A DARN GOOD IDEA,
after 25 years it is almost sure that some are compromised in fatigue strength and some in load rate


3. Lifters - These are Roller Hydraulic Lifters and I don't know if I can use them? COMP CAMs still makes them so should I buy new ones or can I use the old ones? I have no idea?
CAREFULLY INSPECT AND ID SUGGEST CLEANING THEM AND SOAKING AT LEAST OVER NIGHT IN MARVEL MYSTERY OIL THEY SHOULD BE OK

4. Rocker Arms - These are Roller Rockers and I believe I can use them. Do you agree?
AGAIN
CAREFULLY INSPECT AND ID SUGGEST CLEANING THEM AND SOAKING AT LEAST OVER NIGHT IN MARVEL MYSTERY OIL THEY SHOULD BE OK
 
My Camaro has been sitting for 25 years. It has a 400 CI SBC, T400 tranny, 10-bolt posi 3.73 gear. Before parking it 25 years ago, it ran 12.40s on 9 in slicks and open exhaust at Raceway Park. Unfortunately, I did nothing to my car before letting it sit all that time. My question is about the COMP CAMS camshaft, lifters springs, and rocker arms.


1. Camshaft - Roller Hydraulic Camshaft that I believe is okay to us after all these years. Do you agree?
AS USUAL INSPECT IT BEFORE USE< BUT THERES NO REASON THAT IT CAN,T BE USED IF ITS IN PRISTINE CONDITION


2. Springs - I can not use my springs as I did not loosen rocker arms. I know the part number and COMP CAMs still makes them so I plan on buying new ones. Do you agree?
YES ITS A DARN GOOD IDEA,
after 25 years it is almost sure that some are compromised in fatigue strength and some in load rate


3. Lifters - These are Roller Hydraulic Lifters and I don't know if I can use them? COMP CAMs still makes them so should I buy new ones or can I use the old ones? I have no idea?
CAREFULLY INSPECT AND ID SUGGEST CLEANING THEM AND SOAKING AT LEAST OVER NIGHT IN MARVEL MYSTERY OIL THEY SHOULD BE OK

4. Rocker Arms - These are Roller Rockers and I believe I can use them. Do you agree?
AGAIN
CAREFULLY INSPECT AND ID SUGGEST CLEANING THEM AND SOAKING AT LEAST OVER NIGHT IN MARVEL MYSTERY OIL THEY SHOULD BE OK


Grump,
Thanks for your suggestions, I will soak the Lifters and Rock arms in Marvel Mystery Oil, after an inspection. I was mostly concerned about the Roller Hydraulic Lifters as COMP CAMs sells them for $520. The Valve Springs are more in my budget from COMP CAMs at about $120. The Car was running good before the extended parking time :). I plan on pulling the Engine and getting the Short Block and Heads looked at by a local shop that I trust.
 
If you can spare the change.. look at the new short travel roller lifters. If you need it there may be some RPM on the table for ya.
Grumpy? Do you agree?
 
the newer design roller lifters are a bit lighter weight and that can potentially add a few extra rpms,
as you lost some potential inertial loads due to the heavier lifter weights originaly used,
that the valve train needs to compensate for
but the lifter travel distance is mandated by the cam lobe design
keep in mind older blocks have shorter lifter bores, the blocks designed for factory roller lifters had longer and deeper lifter bore walls to reduce wear,
due to the mandated by the original OEM longer roller lifter length.
that also means the new shorter hydraulic lifters will require different push rod lengths

https://www.compcams.com/short-trav...ler-lifter-set-for-chevrolet-small-block.html
 
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