Which 6 bolt 2.4 block/crank is best for a hybrid build up?

[johnnyRacer]

I have a g4cs block but my engine builder said I'd I might as well build a 4g 2.0 or 2.3, if I can't find a 4g64 block. He doesn't think the g4cs block/crank is strong enough for a 550-700hp in a street/strip setup. He also swears by oil squirters and says the g4cs doesn't have provisions for them like the 4g64 does.

My plan was to:

1: have the bare block prepared ie; hot tank, thermal cleaned, mag. flux, align honed, and rebored.

2. Eagle rods

3. wiseco pistons

4. Crank - cleaned,mag fux, inspec., balanced, and ion treated for stength.

I figured this set up would be pretty strong at 700hp . What do you guys think.

[DJpowerHaus]

Everything I have read about the G4CS shows that its stronger than the later 4G64s (7 bolt) and on par with the Truck 4G64s (6 bolt). My 6 bolt 2.4 came with the provisions (castings) for oil squirters. Not sure if the narrowblock 2.4 is any different. I doubt it.

The call for oil squirters is up to you. You can gain oil pressure to where you need it more. You can lose a possible point of failure by elminating them. The extra pressure in the system can go into a nice oil cooler system and turbo oil feed.

If you can break a cast iron Mitsubishi block on that power you should get a prize. The strength of a cast iron block will not make up for inferior machining, assembly or tuning.

Honestly.. if you're planning on a 550-700hp street strip setup, I dont think you should be worrying about the perfect engine. You'll have 5x as much money in everything else and the price of a longblock will be measly in comparison. No need to overdo it on the first try. Build one, see how it goes and if you see the need for the added expense, build a second engine.

If you cant see an engine in a 700hp street/strip car as a minor expense, then you might want to stick to below 500hp.

Am I alone on this opinion?

[johnnyRacer]

Also, are the cranks in the g4cs forged?

[DJpowerHaus]

I dont know. That would be critical though. Its a good question for Hyundai / DSM boards. They'll probably know.