MS3 and stock 243's.
Thread Starter
Joined: Mar 2006
Posts: 349
Likes: 0
From: Simpsonville, SC
MS3 and stock 243's. Well i keep gathering parts for my heads cam swap and have a couple things i am not sure of. I first need to figure out what lifters to run, alot of people run the ls7 lifters which sounds fine but i have also heard they go bad after 15k. So what are other people running that arent really expensive. Also need to know what head gaskets you guys think i should run, i see that gm has a graphite set and the mls set. Just wondering which is better and also what you guys run??? Other than that if there is any other advice i could get that would be great. Thanks
I bought mls gaskets. And for lifters went with the ls7s. But with those it seems you need a 7.350 pushrod. Always best to check, but from what I have researched that's the size. Also lifters brand is opinionated. Different users swear by their own preferred brand, and everyone has a horror story about a particular lifter.
MLS gaskets are fine, and cheap. Just make sure of course the deck surface is totally clean. I also went with LS7 lifters, which are simply the stock GM replacements now. Measure for pushrods to achieve the proper preload and they won't go bad anytime soon.
I am doing the same thing. Might get a valve job on the heads, but other than that. Pretty much stock. I am hoping for low 400s, figuring i dyno'd 379 rwhp on a cold half empty nitrous bottle using a 50 shot a few months ago, low 400s seems doable, and then throwing a 100 shot on top of that in my build. BUT i am also an m6, so that tends to give higher dyno numbers.
i would not put ls7 lifters in my engine get yourself a set of ls1s they can be had for around 100 new...
my dad & i have both had great success with them...he is running a Ms3 also with 5.3 heads...
my dad & i have both had great success with them...he is running a Ms3 also with 5.3 heads...
You guys know the LS7 lifter is the replacement to the LS1 lifter. Out of the thousands & thousands of LS7 lifters we've sold I've seen very few with issues. What you have to understand is it's important to properly setup your valvetrain for good lifter life. I would absolutely run LS7 lifters in any of my cars without thinking twice.
Give us a call, we've setup tons of MS3 combos we can help get you lined out with the parts you need to get this thing running!
Give us a call, we've setup tons of MS3 combos we can help get you lined out with the parts you need to get this thing running!
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
