[SD455DJ]

FJ, Yes, the 2802 is great in a 10:1 400 with std. lifters. I think the 428 & 455would work well with the RAIV cam and Rhoads lifters. I'd even use a 2803 if they made one in a 455 (234/244 @ .488"/.510"). IIRC, Edelbrock marketed such a cam a while back.

Dennis

[Frank R]

Originally Posted by SD455DJ

Frank, I see the 60243 has 228/235 degrees duration at 0.050" and .480"/.490" lift, so rough interpolation would put it somewhere in between the 2802 and the RAIV cams.

Dennis

Thanks Dennis, it appears that it would give the performance of a RA IV without having to use Rhoads lifters. That's just what I was looking for. Rhoads lifters work great but are too noisy for me.

[ponyakr]

Originally Posted by Frank R

Thanks Dennis, it appears that it would give the performance of a RA IV without having to use Rhoads lifters. That's just what I was looking for. Rhoads lifters work great but are too noisy for me.

This one should work great without Rhoads, also.

https://www.summitracing.com/parts/h...w/make/pontiac

[ponyakr]

Originally Posted by SD455DJ

FJ, Yes, the 2802 is great in a 10:1 400 with std. lifters. I think the 428 & 455would work well with the RAIV cam and Rhoads lifters. I'd even use a 2803 if they made one in a 455 (234/244 @ .488"/.510"). IIRC, Edelbrock marketed such a cam a while back.

Dennis

Is this close enuff ?

https://www.summitracing.com/parts/c...6TAaAiDQ8P8HAQ

If not, Bullet & others can get real close to whatever you want.

http://www.bulletcams.com/Masters/Hlobes.htm

http://www.bulletcams.com/Masters/ultradynemasters.html

[SD455DJ]

Originally Posted by ponyakr

This one should work great without Rhoads, also.

https://www.summitracing.com/parts/h...w/make/pontiac

Yes, they call it a RAIV replacement cam.

[SD455DJ]

Originally Posted by ponyakr

Is this close enuff ?

https://www.summitracing.com/parts/c...6TAaAiDQ8P8HAQ

If not, Bullet & others can get real close to whatever you want.

http://www.bulletcams.com/Masters/Hlobes.htm

http://www.bulletcams.com/Masters/ultradynemasters.html

That's really close to my hypothetical 2803. actually,, I see that Wolverine used to sell one under WG5059 (234/244 @ .480"/.510", 112LSA, 81 overlap)

Dennis

[ponyakr]

Originally Posted by SD455DJ

That's really close to my hypothetical 2803. actually,, I see that Wolverine used to sell one under WG5059 (234/244 @ .480"/.510", 112LSA, 81 overlap)

Dennis

It is said that Crane sells some Wolverine grinds, and CMC sells some.

"...It has been rumored that Crane makes all Wolverine Cams and this is not true. Most of the cams sold under the Wolverine name are produced by CMC. It is true that a small percentage of cams sold under the Wolverine name are produced at the Crane manufacturing facility. To complicate things further it seems that certain grinds could be purchased under the Crane or Wolverine name that are the exact same grind, and CMC or Crane depending on the grind could have produced the cam..."

http://nastyz28.com/forum/threads/gu...ur-cam.264812/

CMC sells cores & finished cams.

http://camshaftmachine.com/

Here's 2 Crane master lobes.

HP-234/3254 290 adv .488 lift
HP-244/3400 300 adv .510 lift

http://www.cranecams.com/uploads/cat...ilecatalog.pdf

[njsteve]

The 2802 is a great cam. I have problems with weird noises from the tires when I step on the gas, though....

(click on the video photo link to see what I mean)



Here's the build thread:

http://forums.maxperformanceinc.com/...=gramma&page=7

And the cam degreeing issue (needed a 9 position crank gear to get it exact).

http://forums.maxperformanceinc.com/...d.php?t=780716

[Forrest]

I just put in a 2802 in a 72 lemans gt convertible 455 (462) ho 9.5 c.r. ...all mostly original.. it has an auto trans...3:08 rear and has a/c power brakes etc...ram air manifolds exhaust with 2.5 X pipes... (it is in the machine shop right now) I had a crane h-278-2 in it before...pretty mild cam then...had the Harland sharp 1.65's in it there also..might try the 1:65's on it (with the 2802) after ..we'll see.. looking forward to the difference with the 2802..lot of work to do on this current resto..so could take some time to see the results

[Half-Inch Stud]

B-man, SD455DJ; great info.

I've avoided this 2803 Thread because the recent Cam Install is a tame result in my 9.0:1 455. It starts and idles. That ain't right . Cam is Crower 280h-10 232/236 110 LSA. I fear it may not be 12.2 ET or Quicker anymore. Maybe it's still all that.
Definitely improved idle showing 7-8" vacuum in gear (was 3-4" idle in gear)
Seat of pants says it feels like a 2-BBL.


So this thread Assesses the 2802 is 224/234 on 114 LS, in 455s as tame at low 13's and PINGS.
and the Crower 280h-10 232/236 110 LSA is a tame result in a 9.0:1 469, not sure if it Pings on 89. Still got to nail it a few more times.
and the Tomahawk TC-0x? Cam 236/244 112LS in 9.0:1 (my 12.2 ET Signature) has a snot-nosed ide, 4" vacuum & unstable until warmed, with a respectable pull-away. NO PING.

from this limited set, the ideal cam for Low-compression Street/Strip "455" is 233/240 with LSA between 110-114.
Opens the question of LSA! What about those 104 LSAs? is the Vizard 128 rule good & right?

[SD455DJ]

HIS, I wouldn't expect that kind of performance (12.2 et) from a 455 with the
2802. Maybe the discontinued Wolverine 5059 cam I mention in previous post below would be able to make that kind of power to achieve that ET.

Dennis

[400 Lemans]

Originally Posted by Half-Inch Stud

B-man, SD455DJ; great info.

I've avoided this 2803 Thread because the recent Cam Install is a tame result in my 9.0:1 455. It starts and idles. That ain't right . Cam is Crower 280h-10 232/236 110 LSA. I fear it may not be 12.2 ET or Quicker anymore. Maybe it's still all that.
Definitely improved idle showing 7-8" vacuum in gear (was 3-4" idle in gear)
Seat of pants says it feels like a 2-BBL.


So this thread Assesses the 2802 is 224/234 on 114 LS, in 455s as tame at low 13's and PINGS.
and the Crower 280h-10 232/236 110 LSA is a tame result in a 9.0:1 469, not sure if it Pings on 89. Still got to nail it a few more times.
and the Tomahawk TC-0x? Cam 236/244 112LS in 9.0:1 (my 12.2 ET Signature) has a snot-nosed ide, 4" vacuum & unstable until warmed, with a respectable pull-away. NO PING.

from this limited set, the ideal cam for Low-compression Street/Strip "455" is 233/240 with LSA between 110-114.
Opens the question of LSA! What about those 104 LSAs? is the Vizard 128 rule good & right?

That is a Comp cam not Crower. Just remembering when you first bought it and put it in.

[Half-Inch Stud]

Originally Posted by 400 Lemans

That is a Comp cam not Crower. Just remembering when you first bought it and put it in.

400 LeMans; Thanks. too late for the Edit button.

DennisJ; can you post the 5909 dur & LSA specs?

[STEELCITYFIREBIRD]

OK I''m confused....whats the hypothetic 2803?

[Half-Inch Stud]

Originally Posted by STEELCITYFIREBIRD

OK I''m confused....whats the hypothetic 2803?

a typo for 2802. Shows you got good attention to the detail.

[goatless]

Originally Posted by STEELCITYFIREBIRD

OK I''m confused....whats the hypothetic 2803?

Dennis mentions it, along with it's hypothetical specs in post #61.

[Will]

Originally Posted by Half-Inch Stud

...

So this thread Assesses the 2802 is 224/234 on 114 LS, in 455s as tame at low 13's and PINGS....
from this limited set, the ideal cam for Low-compression Street/Strip "455" is 233/240 with LSA between 110-114.
Opens the question of LSA! What about those 104 LSAs? is the Vizard 128 rule good & right?

Only one person has said it pings and they had it in an engine with what would be considered high compression with iron heads.

Guess it all comes down to what you want. I do not want a rough idling cam with low vacuum and more than low 22x @ .050" duration.

230+ duration cams won't make up on the top end what they lose on the bottom end with unported heads.

[SD455DJ]

Originally Posted by goatless

Dennis mentions it, along with it's hypothetical specs in post #61.

Thanks Goatless for the help (love your LeMans BTW).

SteelCityFirebird, There are a lot of similar cams advertised that are fairly close in duration and lift, but different LSA's. The 2803 cam I contrived is just the logical next cam in the Summit series by adding 10 degrees and 0.022" to previous cam (2803 = 224*+10/234*+10 and .466"+.022"/.488"+.022").

HIS, I agree that the 2802 is fairly mild in a 9.5:1+ 455. Hence the reason Cliff advocates the RAIV grinds for these fast piston speed motors. I think at 9.25:1 down to 8.75:1 the 2802 would work well. I have a '71 455HO motor that has only 8.4:1 and I have the 2801 (068-ish) cam in it also works well. I can run 87 octane without complaint. I've not taken it to the track, but the butt-O-meter feels like low-14's granny shifting.

Dennis

[Half-Inch Stud]

Will, others,

See, I HAD installed an ancient (1970s) Isky Magnum 245/245 104 LS 104/104 LSA, that I installed 4* adv for 100/108 LCs. Well it fit all the anecdotal descriptions in this Thread. Add that it made 285-300 PSI on 3-bumps of the Compression Gauge for a 455 with 48 heads. was in my late teens/early 20's and couldn't afford slicks so it ran 12.8 in a 3850 68 GTO with unported heads.

Sooooo, seems to me the CYL filling efficiency was excellent at idle+, and may continue to to play well in a 9.0:1 469.

Note: Internet shows no evidence that an ISKY Magnum cam series ever exited. Yet, I know someone that FOUND my exact cam, bought it on the bet it was a winner. He put it on the shelf, showed me the cam (verifed), then years later he sold it (PY?) because Rollers became all the rage. So, that one is gone.

Anyone got such a cam?

[Formulajones]

I have a nicely built 428 (.030 over 434) 400 with a small main 428 crank sitting here that is just a smidge under 10:1.
Since it's cheap to do, I'm going to toss in the 2802 camshaft and see how it acts on pump gas.