[1967chevelless396]

Thoughts or comments on using this solid cam in the following combo:

BBC 396 (.060 over)
GM 702 iron ovals (light short radius cleanup, std. valves)
9.8 CR
RPM intake
SMI 750 Qjet (recalibrated by Sean Murphy for new 282S cam)
1 3/4" headers
TH400/2400 converter
12 bolt/4:10 gears

Oh yes, CompCam specs are 282/282 - 236/236 - .561/.561 - 110 lsa - 106 icl - power range is 2000 - 6000 rpms. This cam is supposed to have a broad power band for street use.

Thanks, Charles

 

[hferris]

I think that motor with those 4:10's might want more cam and defiantly more converter....

 

[Dave427]

Looks great.

Dave

 

[66360horse]

i think you mightr get by with the cam but you definitly need more converter 2800-3000 stall i have close to the same setup but i am running more cam and more converter

 

[kirkwoodken]

Why do you think you need 4.10 gears? That cam and 3.31's would be a better streeter, IMHO. Might could use more convertor, but I'd see how it runs with what you have.

Your BBC is not much different from my SBC and mine pulls good with TH400 and 3.31's. I know: I'm beginning to sound like Paul with his junk 301.

 

[68chvlss396]

I have a Lunati hyd roller in my 408 BBC. It is 231/239 @50 with .600 lift. UDharold speced it it out and had it custom ground on 112 LSA on a billet core. It has 049 cast iron heads with 2.19/1.88 valves. It is 10.25 compression backed by an M20 with 3.73 gears. It has a Pro Systems 950HP sitting on it. It runs real good for a baby rat.

 

[67Super Sport]

I used that cam in my .030 over 396 years ago. 390 Oval Heads with stock size valves, closed chamber, and no porting, 9.75:1, Ede performer RPM intake, 750HP carb, TH350, 4000 stall 10" converter, 5.13 gear, 2" headers. Best the car ran in that configuration was 7.50's in the 1/8th. No issues with that cam. The stock heads need some split and the magnum cams are single pattern but switching to a Comp extreme 274 solid roller only picked me up about .08 in the 1/8th (.15-.2 in the 1/4) so that 282S wasn't doing too bad. At the point we were running this good with that cam the car was strictly a bracket car with no power steering, an elctric water pump, loose converter, and steep gear. Less gear (3.90 I think), the 2500 converter we started with and all the accessories and I believe we were running closer to 7.90's-8.00.

My 67 is butternut yellow as well. I will try to post a pic.

 

[big_orange]

I liked the xs282s in my old baby rat. swapped from a lunati BM II, added a half point in compression and got a lot of accusations of it being a 427 or 454. little booger went like a scalded dog but yes, needed a 3500 stall to do it.

 

[ChevelleRob]

I had that cam in 427 and it ran good, a little weak upstairs tho in the bigger motor, good torque IMHO

 

[67Super Sport]

I liked the xs282s in my old baby rat. swapped from a lunati BM II, added a half point in compression and got a lot of accusations of it being a 427 or 454. little booger went like a scalded dog but yes, needed a 3500 stall to do it.

I switched from a bracket maseter II as well. Mine was the 00024 230/230 .544/.544. The comp 282S was about .1 quicker in the 1/8th.

Here is a pic from probably 2005 when the car still had the 396 in it and the roller dialed in at 7.39 Deep which is really a 7.30. Quickest pass with the 396 was at Farmington Dragway in NC, which was a 7.09 @ 96 mph with a 1.50 60' in absolutley killer air.

 

[big_orange]

I switched from a bracket maseter II as well. Mine was the 00024 230/230 .544/.544. The comp 282S was about .1 quicker in the 1/8th.

Here is a pic from probably 2005 when the car still had the 396 in it and the roller dialed in at 7.39 Deep which is really a 7.30. Quickest pass with the 396 was at Farmington Dragway in NC, which was a 7.09 @ 96 mph with a 1.50 60' in absolutley killer air.

nice car! farmington...bout an hour northeast from here!
thats the exact same Lunati cam I had, coupled with 10.25:1 compression and closed chamber ovals. Car ran 8.0s @89 consistent with an occasional 7.97-7.99 @90. (plain old street tires) with 11:1s and the xs282 it went [email protected] with a best of [email protected] shifts instead of 6200 with the old cam.
7.09 is flying for a small rat motor! best I EVER ran on motor was a [email protected], on slicks, at my home track...Mooresville NC.

 

[Offroadr]

I ran the 292H in a 396 and it was a great combo. Ran 13.3s

 

[SWHEATON]

If this is a mostly street car with non od t400 trnas 4.10 gear will get old very quickly,approx 3,200 rpm at 60mph with non od trans and perf converter with additonal stall .

With your motor if mostly a street car i'd run 3.42 or max 3.55 max which would be a good combo and those gearsets are still avail new.

As suggested 3.31 would also work very well but you have to buy them used or NOS from ebay or here in for sale forum.

I bought & in stalled used 3.31's from ebay for my 69 a few yrs back for arpprox $150 & so far no issues.

After i bought & installed the used 3.31's i saw an NOS set of 3.31's on erbay so i scapped then up for a pricey $350 in case i need them in the future.

But your setup/motor combo will do well perf wise and cruise rpm wise with 3.31/3.42/3.55 gear max thats a very good comprimise between perf/streetability-reasonable cruise rpm without an OD trans and the cam/motor combo you have.

But when you go up to 3.73/3.90/4.10 on street with non Od trans & stall converter those gearsets get old very quickly if you do mostly street driving.

And thats not to mention that 3.31-3.42 gear will use considerably less fuel when at cruise
then 3.73 or 4.10 would in same car/same setup which is important with 93 octane fuel being approx $4.50 gal in NY where i live.

Scott

 

[jborland]

Ran this cam in a 3100# 69 camaro ,468 ci with 781 heads and performer intake,1/4" dome TRW pistons,3500 stall,4:11 gear,power glide,14X32 tires.1.55 60',shifted @ 5400 and ran 11:40's to 11:60's.