[Holeshot71]

Originally Posted by Cliff R

"Cliff I know you have probably ran the summit 2802. How does it compare to the crower 60916?"

The 2802 is a "baby" cam in a 400 build with 9.5 or higher compression and I don't consider it enough cam for a larger CID build. It might be OK in a 455 with 7.7-8.5 to 1 compression but for higher compression 455 builds I woln't use a cam with less than 230 @ .050" duration and even some of those I've used are pretty "mild" in the big 455's.

In a 400 build I've only witnessed one dyno session and it made 385hp, can't remember the exact torque numbers and I didn't build it here so not sure how much was left on the table due to minor things like valve/seat work, tight quench, degreeing the cam exactly, carb/distributor tuning, etc..

The Crower 60916 will made a solid 1hp/CID and up near 450ft lbs torque with small chamber big valve heads and 10 to 1 compression. The 60243 will make a bit more and is a better choice for 400 builds with 10 to 10.75 compression, IMHO.........

Hey Cliff just wondering here, did you mean the 2801 is a baby cam, not the 2802?
I thought the 2802 is a bigger cam than the 60916 so not sure about the power differences? I’m asking because I’m looking at the 2802 for a 400 build. Thx

[Skip Fix]

I think the 2802 would be fine in a 400.The 2801 I have idles smooth at 700rpm

[tom s]

You never really know what is right.We put a ST II where Dave recommends and when we pumped it and was a little high on the dyno,Dave told us to retard it from where we were 3 degrees.Reduced the pumping comp enough and picked up HP.FWIW,Tom

[Cliff R]

Yes, the 2802 is "mild" in a higher compression 400 build. Smooth idle, at most a "deep/heavy" sound, little if any lope if you have adequate timing and idle fuel. It produces a very "flat" power curve as well and a good choice for a 400 build on pump gas but I wouldn't use it in lower compression builds, the 2801 is a better choice there.....

[SD455DJ]

I agree with Cliff that a 2802 would be a good choice for a RAIII 400 with at least 9.5 compression. I have a 2801 in a 9.94 to 1 406 (0.030" over 400) and it is pretty tame, idles smoothly and has 15" vacuum at idle (800 rpm in neutral). I went with the 2801 since it has the stock log exhaust manifolds on the small valve #16 heads and needed to move the power curve down to work better with them. It runs great with 93 octane fuel and 36 degrees timing in by 3200 rpm and a great cooling system at 180 degrees max. In a RAIII 400 with bigger valves, more head flow, RA manifolds w/ better exhaust, the 2802 would work much better.

The only engine I have with a 2802 cam is an 8.6 to 1 455HO (stock) that idles smoothly with just a hint of a lope at idle, but also makes 15" vacuum at 800 rpm. It's borderline for going to a bigger cam.

I have a Bullet cam (same specs as the 90619) in a 461 (4.25" crank in a 0.030" over 400) with 9.5 to 1 compression and it is the perfect cam for that engine. It has a distinct lope at idle, makes 14" vacuum at 800 rpm easily and operates the PDB no problem.

Dennis

[KSZR]

Originally Posted by SD455DJ

I agree with Cliff that a 2802 would be a good choice for a RAIII 400 with at least 9.5 compression. I have a 2801 in a 9.94 to 1 406 (0.030" over 400) and it is pretty tame, idles smoothly and has 15" vacuum at idle (800 rpm in neutral). I went with the 2801 since it has the stock log exhaust manifolds on the small valve #16 heads and needed to move the power curve down to work better with them. It runs great with 93 octane fuel and 36 degrees timing in by 3200 rpm and a great cooling system at 180 degrees max. In a RAIII 400 with bigger valves, more head flow, RA manifolds w/ better exhaust, the 2802 would work much better.

The only engine I have with a 2802 cam is an 8.6 to 1 455HO (stock) that idles smoothly with just a hint of a lope at idle, but also makes 15" vacuum at 800 rpm. It's borderline for going to a bigger cam.

I have a Bullet cam (same specs as the 90619) in a 461 (4.25" crank in a 0.030" over 400) with 9.5 to 1 compression and it is the perfect cam for that engine. It has a distinct lope at idle, makes 14" vacuum at 800 rpm easily and operates the PDB no problem.

Dennis

Sounds like 3 good choices depending on your engine setup.