LS6 bottom end?
Thread Starter
TECH Resident
iTrader: (13)
Joined: Feb 2012
Posts: 821
Likes: 0
From: Harford co. MD
LS6 bottom end? Well i finally picked up a 04' LS6 long block that has 60K on it atleast that is what i was told! I popped the heads and pan no surprizes still see hatch marks and all is tight so i was thinking of changing the rods and pistons to forged and run the stock crank but i see so many guys running a stock bottom making 450-550whp with no issues which is where i want to be! So should i even bother with the forged parts or just change the bearings,rings,and rods bolts and call it a day? Also depending on the heads i run i may need to fly cut the pistons i plan on running a MS4 or very similar cam how much can you safely cut the stock slugs? i would have it done at the machine shop while its there?
GM designed the LS architecture for 250,000 miles so @ 60 that thing is just
gettin' goin.....IMHO you should just Lindy tool cut the slugs .080" deep and
get with Tony Mamo from AFR or Martin @ Tick to help ya match a heads/cam
combo.......Texas Speed can also get you some real nice heads for the MS4 if
you're absolutely stuck on that......Again I would not even ring or bearing that
thing just plug and play man !!!!!!!
gettin' goin.....IMHO you should just Lindy tool cut the slugs .080" deep and
get with Tony Mamo from AFR or Martin @ Tick to help ya match a heads/cam
combo.......Texas Speed can also get you some real nice heads for the MS4 if
you're absolutely stuck on that......Again I would not even ring or bearing that
thing just plug and play man !!!!!!!
Thread Starter
TECH Resident
iTrader: (13)
Joined: Feb 2012
Posts: 821
Likes: 0
From: Harford co. MD
Yea i know the mileage is not a issue but i just want to know what i have! i have spoke with Aaron from TSP about heads today he highly recommended the Prc 227's and I'm not stuck on the Ms4 just something around that size. I have some Arp main studs and rod bolts i might just have the machine shop install with the bearing and rings if its not to pricey and let them do the fly cutting much easier i think!
machine shops usually have a piston mounting fixture to mill valve reliefs so
pistons would have to be removed from the rods. If they're not full floating,
I've seen shops wreck pistons trying to remove them via a press. Also the
better the heads you use the less cam you need to make great power.
pistons would have to be removed from the rods. If they're not full floating,
I've seen shops wreck pistons trying to remove them via a press. Also the
better the heads you use the less cam you need to make great power.
Thread Starter
TECH Resident
iTrader: (13)
Joined: Feb 2012
Posts: 821
Likes: 0
From: Harford co. MD
I guess i will have to talk with the machine shops and see what they have to say worst case i could do the fly cutting before i take the shortblock to them that way it get all cleaned up!
If you're going more than 10lbs of boost or 150+ shot of nitrous then yes forge it.
Otherwise if you're staying N/A then don't bother. Get a nice set of ARP rod and head bolts and leave the rest of the bottom end alone if it looks good.
Otherwise if you're staying N/A then don't bother. Get a nice set of ARP rod and head bolts and leave the rest of the bottom end alone if it looks good.
Trending Topics
Thread Starter
TECH Resident
iTrader: (13)
Joined: Feb 2012
Posts: 821
Likes: 0
From: Harford co. MD
No power adders on this one i have a Twin Lsx 427 this is just a toy until that is finished! I think that the route i will go just Arp it up if it checks out good.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
