L8T crank in a LS2 block??
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L8T crank in a LS2 block?? I am trying to figure out if that L8T truck crank will fit a LS2 block and if LT4 heads will fit a LS2 block. I see that Scoggin can dowel the L8T block for either head, so shouldn't those heads fit the LS2 with new dowels? I can't find much info or interchange. Most posts just say that not many parts will interchange. Thanks!!
The only reason GM went with a Gen5 platform was efficiency. The only way to go further (fuel mileage) on a gallon of gasoline, is to squeeze it harder. Compression. And more compression (efficiency) allows other areas of the engine to be optimized. DI is a far more efficient way to introduce fuel into a chamber, as you can aim the nozzle right at the spark plug. The piston design of the Gen5 platform further enhances flame propagation by forcing the burn toward the exhaust valve. Reversing the valve layout further enhances efficiency by straight lining the intake port even more. Several little tweaks that make the Gen5 more efficient, therefore make more power. Efficiency = power. I went down a rabbit trail here, I know, and I apologize. Every engine that I’ve built out of my shop here since 1998 has EFFICIENCY = SPEED stamped on the block behind the intake, along with my company logo CRE (Cramer Race Engineering).
And to add to the silliness here, GM along with other auto manufacturers have committed to going EV here in a few short years. All of this ICE research as of late for nothing?
Thread Starter
10 Second Club
Joined: Nov 2005
Posts: 933
Likes: 75
Now I have lots of questions:
Looks like the L8T engine shown by Scoggin has port injection in LT4 heads. Does that mean there is a non DI version of those heads?
Can I use a LT4 style cam in my LS2 block ? Or if there are non DI versions of the head---are the ports reversed like the LT4 DI ?
And still the question will the L8T crank work ? I guess you can tell that I have a LS2 block that I would like to use. I guess 2 grand for the new block is not too bad though. I don't plan on 2K HP. Hard to believe they made 2k HP on 220# injectors.
Looks like the L8T engine shown by Scoggin has port injection in LT4 heads. Does that mean there is a non DI version of those heads?
Can I use a LT4 style cam in my LS2 block ? Or if there are non DI versions of the head---are the ports reversed like the LT4 DI ?
And still the question will the L8T crank work ? I guess you can tell that I have a LS2 block that I would like to use. I guess 2 grand for the new block is not too bad though. I don't plan on 2K HP. Hard to believe they made 2k HP on 220# injectors.
Now I have lots of questions:
Looks like the L8T engine shown by Scoggin has port injection in LT4 heads. Does that mean there is a non DI version of those heads?
No. The LT4 heads are modified by simply capping the injector nozzle hole.
Can I use a LT4 style cam in my LS2 block ? Or if there are non DI versions of the head---are the ports reversed like the LT4 DI ?
Yes, you can run the LT camshaft in the LS2 block. There are no non-DI versions out that I’m aware of, although plugging the DI port isn’t a lot of work.
And still the question will the L8T crank work ?
Yes, the LT8 (L8T) crank will work in an LS2 block.
I guess you can tell that I have a LS2 block that I would like to use. I guess 2 grand for the new block is not too bad though. I don't plan on 2K HP. Hard to believe they made 2k HP on 220# injectors.
Looks like the L8T engine shown by Scoggin has port injection in LT4 heads. Does that mean there is a non DI version of those heads?
No. The LT4 heads are modified by simply capping the injector nozzle hole.
Can I use a LT4 style cam in my LS2 block ? Or if there are non DI versions of the head---are the ports reversed like the LT4 DI ?
Yes, you can run the LT camshaft in the LS2 block. There are no non-DI versions out that I’m aware of, although plugging the DI port isn’t a lot of work.
And still the question will the L8T crank work ?
Yes, the LT8 (L8T) crank will work in an LS2 block.
I guess you can tell that I have a LS2 block that I would like to use. I guess 2 grand for the new block is not too bad though. I don't plan on 2K HP. Hard to believe they made 2k HP on 220# injectors.
Again, if you choose to run the Gen5 heads/cam/intake on your LS2 block, you’ll have to have either the heads machined for the different dowel locations, or have the block machined for the Gen3/4 dowel location. Or…have them both machined and run 4 dowels per side. Would hold the head in place better, as they do move around with big power builds.
