dash94vert

What to expect from a cam like this on a stock bottom end, mid mileage LT1 w/ all supporting mods, ported heads/intake and maybe some nitrous?

96capricemgr

iTrader: (1)

Stock unported heads might choke it down to a useable rpm BUT IMO that looks like it would make a better ported heads on a stroker cam.

Most of us with ported heads on stock shortblocks or even 355s tend to use cams under 230degrees intake duration, unported heads tend to not let a cam rev as high.

Camaroking1996

Get new heads and intake

dash94vert

What kind of heads and intake would be better then the ported stockers?

Camaroking1996

Le2 or AI 190cc and what ever heads get the intake ported by the same guy

dash94vert

I already have ported heads and a ported intake, couldnt afford LE or AI on my budget lol

Camaroking1996

Ha oh

96capricemgr

iTrader: (1)

If the heads are decent you probably wont really be able to utilize the duration of that cam because you should shift well past peak HP rpm and I don't think the pcm is going to have the capability, pretty risky to constantly take the stock shortblock to the pcm's limits too. Some guys are fine, some spin rod bearings.

joelster

If the stock shortblock has good oil pressure I say go for it.

SS RRR

iTrader: (2)

If driveability is going to be an issue, on a stock block with ported heads that cam is going to make you crazy once you get used to it.

dash94vert

Well its not my daily driver so drivabilty isn't really an issue, and just as 96capricemgr said the only worry i have is throwing a rod but its a rebuilt bottom end with about 50,000 miles, nothing special done but the older woman I got the car from before had it rebuilt, I could see the pistons werent stock and that it was bored out or honed a bit. And oil pressure should do good, I got a high volume oil pump for it to help the flow or woukd this not have an effect?

SS RRR

iTrader: (2)

Do not use a high volume pump. Completely unnecessary if the bearing clearances are to stock tolerances.

dash94vert

Gotcha, would the pump take a negative effect on the motor?

SS RRR

iTrader: (2)

Increase parasitic losses, if using a stock oil pan it could cause pump cavitation and can accelerate wear on the oil pump drive gear on the cam.
A standard volume pump with a high pressure spring is all you need.

dash94vert

Thanks, the high volume pump was recommended, but I never knew if it was truely needed and always felt good about just going with the stock pump

96capricemgr

iTrader: (1)

A "rebuilt" shortblock that was not specifically done well for performance would WORRY me more than a truly stock shortblock.

SS RRR

iTrader: (2)

You need to find out what the bearing clearances are, if they reflect stock tolerances or are looser, before deciding what pump to use. To my surprise it doesn't seem shops really supply build sheets anymore. Especially the big internet rock star performance shops.
Reason why high volume pumps are recommended is because they produce more pressure and the general consensus is that the higher the pressure the more better it is... Not true at all.
Some good info here from one of the most knowledgeable on cz28.com:

http://www.camaroz28.com/forums/show...90&postcount=1