c5z16z

not my car my brothers he has a 04 c5z but he needs lifters due to one shiting on his cam hes got a vengeance VRX6 238 240 .605 .609 112 LSA cam and ,,,

he also needs pistons one of his rings went bad according to machine shop

he will not be milling his heads so wht forged piston should he run to keep his stock compression

lifters i told him to go with "comp R" lifters witch is wht i am running on my c5z

but he was wondering if the ls7 lifters were any better
i know ls7s are like 140.00 for the set and
comp R lifters are 220.00 from tsp so help me help him decide thanks fellas

also the cam he has not ordered it yet but he will need the cam because according to them the lifter scratched the cam lobe up but that was the cam he was running i told him to get the same cam from vengeance

unless you guys suggest like a t rex cam or wht ever off the shelf cam thats about as good thanks in advance the car sits in the shop as we speak i need this info

bww3588

iTrader: (49)

Just about any forged piston will have valve reliefs. Which you will probably want with the tRex or similar.

With the t Rex I would mill the heads and run a thinner gasket and bring the compression up to 11:1. If it's at stock 10.5:1

c5z16z

thanks for your help the last time you helped with mine but anyways my brother does not wanna raise compression hes leaving the heads alone just wnts to have the car running again untill he gets a badass motor built for it you know

what lifters would you run from the stated above
, what pistons last time you recommended me mahle
pistons but witch so we can order them also what lifters and should he get another one of those vengeance cams the VRX6 stated above ,,

bww3588

iTrader: (49)

No prob man. If the vengeance cam cleared the pistons, and this is only a temporary motor like you stated, I would just look for some stock replacement pistons, ls7 lifters and another vrx6 cam.

Now if it is gonna be semi permemamt, I would go with the mahle pistons which you used, same cam, ls7 lifters and a thinner gasket to make up for the valve reliefs.

But if it were me doing it, and I knew I was going to build another one a year or 2 later, I would go with some stock replacements and keep the costs as little as possible.

bww3588

iTrader: (49)

I am biased toward the ls7 lifters because I have used them multiple times and never had any problems, however, I do not have any experience with the comp r lifters so I cannot say bad or good.

From what I have heard about them, it is either hit or miss on The comp r's. The reason I have not tried them is because I tend to stick with what works...

slammedc5

iTrader: (1)

I like the LS7 lifters, and really like my mayhem 2 cam 235/240 630 lift 113lsa

itsslow98

iTrader: (18)

why bother with forged pistons on an N/A motor that hes not looking to add any power to?

c5z16z

first off thanks everybody

and no he wont be adding power anytime soon he just want a temporary good running cam only motor while he decides what motor he wants in it ,,

c5z16z

thanks,
he did clear the the VRX6 cam and i will let him know to get the same camshaft again thanks ,,

i will tell him to go with the ls7 lifters thanks ,,
so i am sure about what lifters and cam to go with for his car,,

i got comp Rs when i did mine i guess i got good ones but if its a hit or miss we will order ls7s for sure,,


now,
about the pistons they have not confirmed about how much material is coming out the piston holes so ifs just a clean up hone the get the cross hatch back then i will just tell him to go with stock pistons it should not be a problem would it because of piston to bore tolerance,,,

thanks just not sure about the pistons yet if he can keep stock then we will go with those,,,

thats what i wanna know if he can keep stock piston size with just a clean up hone even though the bore is a little bigger thanks fellas almost done just deciding what pistons ,, i will also wait to see what they tell my bro about how much will be removed so that we can order pistons ..

bww3588

iTrader: (49)

Depending on how much has to come out. If the piston to wall is still in spec, stock size is fine. However, if for some reason the max .008 has to come out, stock replacements can be had in oversizes.

David@Vengeance

iTrader: (2)

PM Sent

c5z16z

replied pm,


thats cool who sells those stock over sized pistons around here

c5z16z

Thanks Vengeance Racing,

for helping in getting our products, and for your customer service..

Parts ordered..

miami993c297

iTrader: (6)

Never compromize on any parts of a valve-train...it will cost you more by the moment you will have fix the issues.

Why not :

http://www.straubtechnologies.com/ch...-lifters-4708/

You have a PM
Christian

c5z16z

nice lifters no doubt but we already ordered the parts from vengeance,,

thanks tho