[qwick98z]

Hey guys Im looking for a good cam for a forged 346

SPECs

stock crank,Lunati rods,Ross flat tops,MAST small bore LS3 heads, fast 102,BS3, bla ba bla

The car is a 1998 camaro z28 hard top, 275 radials 2900#'s th400,12bolt, "stock suspension"

Just looking to go high 9's on the motor.........?

 

[Pro Stock John]

I'm digging what that guy ran on the East coast in the smurf color Camaro, might have had a T-Rex? I'm sure he'll post.

 

[GrannySShifting]

wrong cam for those heads.

What bore is that chamber set up for? 4.00" right?

 

[qwick98z]

3.905 bore 64 cc chamber

 

[GrannySShifting]

No I mean the cylinder head

 

[Collinsautomotive]

Hey guys Im looking for a good cam for a forged 346

SPECs

stock crank,Lunati rods,Ross flat tops,MAST small bore LS3 heads, fast 102,BS3, bla ba bla

The car is a 1998 camaro z28 hard top, 275 radials 2900#'s th400,12bolt, "stock suspension"

Just looking to go high 9's on the motor.........?

not a street motor ? can your valvetrain handle the rpm needed to do this ?

 

[qwick98z]

wrong cam for those heads.

What bore is that chamber set up for? 4.00" right?

Yes, sorry it is a 4.0 bore on the heads


I don't drive the car much on the street, maybe to a car show or to the track. Im trying to stay away from a solid roller but if that's what I need Ill get. As far as valvetrain, I have a set of Jesel SS shaft mount rockers but Ill buy whatever I need.

 

[qwick98z]

4.0 bore 257 cc on the heads.

 

[oscar]

Give Ed Curtis a call. He will sort you out.

 

[CROWER]

244/ 370" 112 , custom billet is what id run. can set it up with solid rollers or hyd. i have guys run both types of lifters on this same grind. goes both ways cam

 

[Pro Stock John]

Sorry I'm not familiar with the Mast small bore LS3's, didn't catch that part. Are they new castings?

 

[ShorTuning]

I don't think those heads will work that well on a 347... they just seem to be way too big to me for those cubes aspecially when there are guy's making some pretty big power with 50cc less intake port.

 

[qwick98z]

I thought I'd give them a try, I know it's hard to pick a cam when the heads are so new, but someone must have done so testing on these things.

 

[Ed Curtis]

I thought I'd give them a try, I know it's hard to pick a cam when the heads are so new, but someone must have done so testing on these things.

Yup -

 

[itsslow98]

I thought I'd give them a try, I know it's hard to pick a cam when the heads are so new, but someone must have done so testing on these things.

Spent a good amount of money on a set of heads when your guessing someone would have done research. Why not call MAST and see what they reccommend?

 

[GrannySShifting]

4.0 bore 257 cc on the heads.

OK.... so, thats not going to be gravy on a 3.905 motor...?

 

[Brian Tooley]

I'm no cam guru, but I'll take a shot at it. Since you have LOTS of head and intake, I think you can run a good bit of overlap, to help make torque and get the velocity up on the heads. I think 20-24 degrees of overlap would be good. I would close the intake valve fairly early because I think the velocity is still going to be low, so I would close it by 44 or so. I like the LSL lobes, so a 235/243 on a 109+2 would give you 21 degrees of overlap and a 44.5 IVC and 52.5 EVO point. I hope this helps.

 

[Pro Stock John]

Hey Brian I've got a friend with a 382 cid stroker and he's planning to go to L92 heads and a carb intake... Interested in spec'ing a cam for him? What is your email? Our big thing is that the car hits the track often and he does Drag Week.

 

[qwick98z]

I have done my research, I just want to see if any others have done testing on a set up like this.

Thanks for the help