Has annyone experince with the use of a high rpm manifold and cam, like the miniram with a lt4 hot cam ( or simular ), and stock bottom end? Can u have a stock bottom end L98 and shift at 6200rpm for years and years and not brake it? Or do you basic run a "time bomb" with this setup?
If I should use a miniram lt4 hot cam afr 190 heads, I should have peak HP at 6500rpm ( or higer ), is that safe if you wil use a "light" valve train? And you have a low milage car.

Thanks

 

I thought you already had decided on your combo?

 

yep i have. And the parts are already on its way.

Im just learing

REgards

 

well my first L98 that died(89'), was of course all stock, died with 72,000 original miles on it. it spun a rod bearing. the L98 in my 88' is currently dying. the damn thing is knocking. it now has 111,200 on this one so far. let's see how much longer it's lasts. i wouldn't trust it as far as i could throw it. which isn't much. there is a member traxion, i believe, running 12's on the stock L98 bottom end.

 

I had 166k miles on my original L98 when I modified it. It ran 12s like this and was my daily driver until a oilpump pickup tube got moved out of position, starved the engine of oil, and threw a bearing at 176k miles.

 

I have never had the motor out of the car. Stock L98 bottom end. I've run 12.2's @ 112mph with it ... shifting at 6500rpms. With my new combo I am hoping for 11's ... shifting as high as my valvetrain will let me.

Tim

 

I don't think it is any weaker than the older 350s
they all can have problems now and again you could build the **** out of it and still only run a couple times before it blew some thing . or like some run it 200,000+ miles with your foot to the floor at every stop you get to.