Cam Help
03-09-2004, 09:18 PM
#1
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Car: 87 IROC-Z
Engine: 350ci
Transmission: T-5
Cam Help
I need some cam recommendations. I was supposed to buy a Hot Cam but it was accidentaly stored in a water puddle in a friends garage. I got offered another cam from someone else but it seems like it would be too much. It is a Comp I think, but the specs are 234*in 244* @.050 and 560 lift with 1.6 rockers 112* lobe sep. Does this seem to big or Should it run ok? My heads are mildly ported and the rest of the mods are in the sig. A rough idle doesn't bother me, I just don't want to over cam and slow down. This is going in a L98 shortblock.
Last edited by todd200; 03-09-2004 at 09:23 PM.
03-09-2004, 10:33 PM
#2
Stock springs will bind well before 0.560" of valve lift. However, as a safety feature, the factory pressed-in rocker studs will start to pull out and prevent valve spring coil bind and possible valve/pisont interference.
In other words, you're going to have to spend a lot more time reworking your valve train before you can use such a cam.
In other words, you're going to have to spend a lot more time reworking your valve train before you can use such a cam.
03-09-2004, 10:42 PM
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Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
Judging from you sig, I dont know about your transmission. If its a manual, thats fine. If its an automatic, i can imagine something like a 2500-3000 stall speed would be on tap to tame that cam. And as vader said, youre valvetrain needs to be up to par to handle that cam.
03-09-2004, 10:43 PM
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Car: 86 Corvette, 89 IROC, 1999 TA
Engine: 350, 350, LS1
Transmission: 700r4, 700r4, T-56
Axle/Gears: 3.07, 373, 4.10
Originally posted by Vader
However, as a safety feature, the factory pressed-in rocker studs will start to pull out and prevent valve spring coil bind and possible valve/pisont interference. .
However, as a safety feature, the factory pressed-in rocker studs will start to pull out and prevent valve spring coil bind and possible valve/pisont interference. .
haha *** that actually made me laugh.. thanks
03-10-2004, 06:11 AM
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Car: 87 IROC-Z
Engine: 350ci
Transmission: T-5
The heads have ARP screw in studs and comp 987 springs with guide plates. The problem is I only spin to about 6000rpm and wonder if I will actually slow down due to the less than ideal heads and relativly low shift point.
03-10-2004, 08:33 AM
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Car: 1989 Trans Am
Engine: 355 HSR
Transmission: Pro-Built 700r4 w/ 3400 converter
Axle/Gears: 10 bolt w/ 3.42 gears
Are you sure the duration is 234/244. I think it may be 230/244 which means its the COMP cc306. You will have to spin that cam higher than 6K I guarentee that. There are stock headed LT1 guys running that cam w/ little to no problems. Personally I wouldn't go that big w/ mild ported heads, it screams for a set of AFR or hogged out Vette heads. But you can do it if the price is right!!!
03-10-2004, 08:56 AM
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Car: 87 IROC-Z
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Well the price is $75.00. I'm just not sure about spinning over 6000 with a stock bottom end, nor do I want a cam that will be a complete mis-match.
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03-10-2004, 09:32 AM
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Car: 1989 Trans Am
Engine: 355 HSR
Transmission: Pro-Built 700r4 w/ 3400 converter
Axle/Gears: 10 bolt w/ 3.42 gears
I bet your mild ported heads flow about what stock LT1 heads flow, so if those guys are running that cam on stock heads, you should be fine.
I see you are from KY, if you ever get on the KYFU board, then ask Chad W. he spins his motor to. He has the 306 in his LT1...
I see you are from KY, if you ever get on the KYFU board, then ask Chad W. he spins his motor to. He has the 306 in his LT1...
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