LS3 block/stroker questions
Thread Starter
Melting Slicks
Joined: Oct 2009
Posts: 2,259
Likes: 1
From: Las Vegas NV
St. Jude Donor '10
LS3 block/stroker questions
Can't find specific answers, so I thought I'd ask here...
Is a 4" LS crank a direct drop in for the LS3? Or does the block or rod ends need clearanced?
I'd like to keep the stock size pistons and rods, just with the longer stroke crank for a 416ci.
Wouldn't is simply be easier to put a new crank in the stock block rather than switch everything over to a whole new shortblock?
I'm just wondering, because I see all sorts of shortblocks available. But nobody really just doing a crank swap (sounds so easy, huh? lol. ) with the stock pistons or rods. I'm guess that it must be an enormous p.i.t.a. compared to an ol' SBC.
Thanks for any insight. I wish there was a class I could take, or something. haha.
Is a 4" LS crank a direct drop in for the LS3? Or does the block or rod ends need clearanced?
I'd like to keep the stock size pistons and rods, just with the longer stroke crank for a 416ci.
Wouldn't is simply be easier to put a new crank in the stock block rather than switch everything over to a whole new shortblock?
I'm just wondering, because I see all sorts of shortblocks available. But nobody really just doing a crank swap (sounds so easy, huh? lol. ) with the stock pistons or rods. I'm guess that it must be an enormous p.i.t.a. compared to an ol' SBC.
Thanks for any insight. I wish there was a class I could take, or something. haha.
Racer
Joined: Jan 2009
Posts: 405
Likes: 1
From: SPRING CREEK NEVADA
I believe there is alittle that needs to be taken off the bottom of the cylinders for the longer stroke, I bought the short block assembled so not exactly sure how much needs removed but I don,t think it is much. I am sure you could do it fairly easily yourself.
Le Mans Master
Joined: Oct 2007
Posts: 6,149
Likes: 11
From: Greater Detroit Metro MI, when I'm not travelling.
Can't find specific answers, so I thought I'd ask here...
Is a 4" LS crank a direct drop in for the LS3? Or does the block or rod ends need clearanced?
I'd like to keep the stock size pistons and rods, just with the longer stroke crank for a 416ci.
Wouldn't is simply be easier to put a new crank in the stock block rather than switch everything over to a whole new shortblock?
I'm just wondering, because I see all sorts of shortblocks available. But nobody really just doing a crank swap (sounds so easy, huh? lol. ) with the stock pistons or rods. I'm guess that it must be an enormous p.i.t.a. compared to an ol' SBC.
Thanks for any insight. I wish there was a class I could take, or something. haha.
Is a 4" LS crank a direct drop in for the LS3? Or does the block or rod ends need clearanced?
I'd like to keep the stock size pistons and rods, just with the longer stroke crank for a 416ci.
Wouldn't is simply be easier to put a new crank in the stock block rather than switch everything over to a whole new shortblock?
I'm just wondering, because I see all sorts of shortblocks available. But nobody really just doing a crank swap (sounds so easy, huh? lol. ) with the stock pistons or rods. I'm guess that it must be an enormous p.i.t.a. compared to an ol' SBC.
Thanks for any insight. I wish there was a class I could take, or something. haha.
As far as a class... I wouldn't know, but there are many *excellent* books on the subject.
Here is one:
Tech Contributor
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
You can sell your LS3 for 2500 or so for the shortblock and Lingenfelter sells the 416 starting at 5100.
Figure 6k with crate, shipping, upgraded pistons, and a good timing chain.
I have a great cam for it. Using your LS3 heads it will hit 540rwhp or 570 with a Trick flow 235.
Figure 6k with crate, shipping, upgraded pistons, and a good timing chain.
I have a great cam for it. Using your LS3 heads it will hit 540rwhp or 570 with a Trick flow 235.
