6.0 block with l92 heads

Reply Subscribe

Thread Tools

Search this Thread

May 17, 2012 | 04:24 PM

towerhand

Thread Starter

Staging Lane

Joined: Feb 2012

Posts: 71

Likes: 0

From: South Mississippi

6.0 block with l92 heads

Just bought some parts off a guy at a real good deal. I got a 6.0 cast block, a new set of cnc ported l92 cyl heads, a set of diamond pistons bore 4.030, comp height 1.125, rod length 6.125, effective volume -1.8cc, and cam is comp 244, 254 duration at .050, lift is .612, .622. Plan on buying a callies crankshaft, and callies hbeam rods. Is this a good combo and does anyone see any concerns i need to address. This is going in a 02 ta ws6, m6. Thanks for any help.

May 18, 2012 | 08:45 AM

87silverbullet

TECH Veteran

iTrader: (11)

Joined: Mar 2007

Posts: 4,873

Likes: 8

From: Slidell,LA

That cam is on the big side for LS3 heads, especially for a 370 cu in engine. Plus it might cause ptv issues.

May 19, 2012 | 03:43 PM

towerhand

Thread Starter

Staging Lane

Joined: Feb 2012

Posts: 71

Likes: 0

From: South Mississippi

its a 408, not a 370

May 19, 2012 | 03:52 PM

redtan

TECH Junkie

iTrader: (5)

Joined: May 2008

Posts: 3,764

Likes: 17

From: Belmont, MA

For a 408 that's a decent cam, just make sure that the pistons have valve reliefs cut in otherwise you might have PTV issues especially with milled heads.

May 19, 2012 | 04:28 PM

towerhand

Thread Starter

Staging Lane

Joined: Feb 2012

Posts: 71

Likes: 0

From: South Mississippi

The pistons dont have valve reliefs, but the heads arent milled

May 19, 2012 | 05:21 PM

towerhand

Thread Starter

Staging Lane

Joined: Feb 2012

Posts: 71

Likes: 0

From: South Mississippi

Just checked the pistons, they do have valve reliefs in them. Does anyone know what kind of hp i should be looking at out of this set up. I just ordered a fast lsxr 102mm intake, what tb do i need to go with.