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Whipple'd silverado

I don't doubt it but I think $6,700 could go a long ways everywhere else on the truck. Or sell your truck and put the cash with it and buy a duramax.
 
Yea it can go pretty far with internal engine parts and a lot of bolt on performance, just trying to be alittle bit diffrent with my truck.

And I don't want a diesel, I don't wanna step on any toes or start any giant debate gas vs diesel but I really don't have any interest in diesel performance. I'm a gasser kinda guy lol I'd go 8.1L before a duramax lol
 
For that kinda money I would probably be looking at a 6.0 and a few upgrades. Have it ready to go and swap it in when you have a free weekend.
 
Honestly I did think of that, I wanted to swap in a 6.2L and a 6L80 and then go from there. I mean the 6.2 is already at 420hp factory, I figure a good tune and I could be around 450-460. Then add in the fact that Id be going from a 4 speed to a 6 speed auto, I imagine it'd pick up how hard it pulls thru the whole rpm range.

The only thing keeping me from doing that is some of the wiring and the cluster swap.
 
Holy crap! Forget a 6.2. For 6700 you could build a damn 408 out of a 6.0, have aftermarket heads and a completely fresh motor with 650+ hp
 
every single merc one I see in the boats run on about 10 psi of oil pressure... if your lucky, some less.... no thanks... and rattley mofo's too....

it's THE only long block I ever got from Jasper that ate itself in a couple hr's, all the bearings in the pan... had to warranty my first mill ever from them...
 
ryoken said:
every single merc one I see in the boats run on about 10 psi of oil pressure... if your lucky, some less.... no thanks... and rattley mofo's too....

it's THE only long block I ever got from Jasper that ate itself in a couple hr's, all the bearings in the pan... had to warranty my first mill ever from them...
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Hmmm, not doubting it but that's the first negative stuff I've heard about them.
 
they NEVER had 6.2 dizzles in boats of any consequence... I may, MAY, have seen 1 25+ yr's ago.. maybe...

I stand by my statements....
 
Yea this is the first bad thing I've heard about the 6.2L, well except for the piston slap on start up. But that's all of these engines anymore it seems.
 
I don't know if the vehicles they put them in have oil pressure gauges or not, but if you drop a mechanical gauge on em once warm, the psi is stoopid low... not just one motor, but every one we see.. often in pairs...

I'm not comfortable with gas V-8's idling at 6 or 7 psi of oil pressure..
 
79bonanza said:
Yea this is the first bad thing I've heard about the 6.2L, well except for the piston slap on start up. But that's all of these engines anymore it seems.
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Indeed. I've always heard the cold piston slap problem with any factory assembled LS motor. Its also what causes them to use oil at a rate they consider "normal". Its just loose factory specs from sloppy assembly.
 
Yea I'm not saying all the new engines are like that but I know they lower oil pressure to reduce load on the engine to increase power output. That's what I was told by a builder at the jegs engine master challenge.

I know my buddies 5.7 hemi does the same in his truck
 
79bonanza said:
Yea I'm not saying all the new engines are like that but I know they lower oil pressure to reduce load on the engine to increase power output. That's what I was told by a builder at the jegs engine master challenge.

I know my buddies 5.7 hemi does the same in his truck
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That's kind of a loaded way of describing what they do, and sorta unrelated. Increasing bearing clearance, aka building a motor loose, is a way of cheating more power out of an engine by reducing friction. People normally will install a high pressure pump to offset this. It honestly doesn't really justify a lower oil pressure reading.

The LS cold noise that they are know for in stock format has nothing to do with bearings but is actually piston from a sloppy tolerance between the piston and cylinder. Once the engine warms up and everything grows the noise goes away. Typically this is normal for any engine built with forged pistons as they require more room to grow, hence knocking the clearance off at a cold start. But the GMs have this issue in all the motors, most with cast pistons and they really shouldn't
 
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