waterbug1999

iTrader: (3)

Planning on building a 383. Can the LS1 heads, ported and polished handle the CFM for the stroker? Thanks fellas. Just trying to figure out what to do WHEN i get to this point.

FASTONE

Yes they can,as thats the only heads you can get besides 6.0 or 5.3 truck heads and the ls6 CORVETTE head.

waterbug1999

iTrader: (3)

What will work the best?

TD's z

what will be your bore and stroke NA FI n20?

then i'll get specific

Buckshot

Good question. I'd like to know what are viable heads as well. I have stage 2 5.3 heads (2.02/1.58 valves and dual springs) with a 229/229/112 cam on a stock bottom LS1 and was wondering if this combo would work with a forged 383 or 395 stroker.

SAM98WS6

Dont get caught up in high lift cfm either. My Rapid Stage 2 LS1 2.02/1.57 heads flow almost 300cfm/230cfm at .500; over that at .600 while still kicking *** at lower cfm. Compare that to others. I dont give up anything. Alot of these other places make heads for high lift/rpm only...which isnt desireable on a streetcar. I have perfect stock compression 383 heads...92 octane...242/250 .595/.595 109 RUMBLE
My ARE S2 2.055/1.60 are sitting on the shelf.

CHRISPY

The head plans for my combo have changed three times. I was originally going to go with a 5.3 CNC head. Then thought about trying a 6L head.

Finally we are going with a CNC LS6 head. (I didnt go with a domed piston so making the compression I wanted on a 6L head would have been difficult)

2.055/1.57 valves and shooting for close to 330cfm at .600 lift on a 3.905 bore at 28 inches

My intended rpm/power range is ~3700-6600rpm

The rest of my combo is 385 stroker with eagle crank/rods and diamond pistons. 242/246 110LSA cam on XE-R lobes


Chris

ezss

I had LS1 heads on my 388 all-bore. Worked fine, made good power. I would suggest a bigger cam though, since the bigger displacement kind of swallows up what might seem like a big cam on stock cubes.