Just bought a p1sc twin kit for my lt1 and trying to decide which cam to use. I plan on building a forged 355 and using stock trickflow heads. I know alot of people on here use the 224/236 low lift cam but I have read that the high lift would be better. I am just wondering what do you compromise when you increase lift? It is a street and strip car not a daily driver. But I do want to keep my power brakes.

 

two valve heads love lift

 

I have a few different blower grinds that I use with great success, none of them have lift less than .575 if that tells you anything.

 

I understand that more lift = more power. But, anytime you add power you compromise something else. What I want to know is the negative effects of a cam with more lift.

 

I use the high lift version with my P1-SC and 383. I made the power in my sig on the last dyno tune and it carries a nice tune with it. I would def go with the high lift

 

I no expert on this but generally the higher lift=higher rpm and power band. Lower lift cams make more torque down low. Also higher lift cams are more prone to cam surge.

All this being said. I would go with a high lift version that doesn't have much overlap for a blown application. You can get away with a smaller LSA by increasing the ramp rates such as the Comp XE grinds. The bad thing about the Comp XE grinds is the wear and tear on your valves, springs and rockers.

Everything is a compromise when selecting your cam.

 

i have the low lift in my stock *** 350 with some gas. and it put down 489 to the tires on a 150 shot.

 

The only real disadvantage to the high-lift version is valvetrain setup. You have to be fairly careful when choosing springs and setting them up. You have to run about 145 lb on the seat, but still be capable of the .624" exhaust lift.

Mike

 

What lifters are you guys running with the High lift version, Replacement OEM lifters??? Also, when do you give up on the 918's with the Lift and go with a Different spring???

 

I should mention I am talking about the comp cam 224/236 grinds one with 536/555 the other 605/622 But of course I am open for suggestions. I am also curious as to what upgrades will be needed for the higher lift version.

 

I typically use the Morel's but if price is an issue we will go with a Comp R. I normally use the Comp OEM and the Morel as my two go to lifters.

 

I have a 224/236 high lift cam on a 116lsa for sale. This was Rich Krause's old cam......

Later
Travis

 

I will take it.