Street Hemi Cam Grind (B/RB)
#478041
09/24/09 01:45 AM
09/24/09 01:45 AM
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Joined: Jun 2006
Posts: 5,161
CT
GTX MATT
OP
master
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OP
master
Joined: Jun 2006
Posts: 5,161
CT
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Does anyone sell the old street hemi grind anymore or anything similar?
Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street
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Re: Street Hemi Cam Grind (B/RB)
[Re: ZIPPY]
#478048
09/24/09 11:17 AM
09/24/09 11:17 AM
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Joined: Jun 2006
Posts: 5,161
CT
GTX MATT
OP
master
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OP
master
Joined: Jun 2006
Posts: 5,161
CT
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So the 280 .474 lift will work just as well? I had thought it was similar but I knew the original hemi grind specs were different.
Would this cam work alright with stock stall and 3.23 or 3.55 gears? It seems a little too big to me.
I'll be in a '68 440, with headers and an Eddy Performer RPM, 800 with vaccuum secondaries.
Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street
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Re: Street Hemi Cam Grind (B/RB)
[Re: magnum440]
#478052
09/24/09 03:10 PM
09/24/09 03:10 PM
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Joined: May 2004
Posts: 12,383
Taxes & Virus's R-US, NY
Dragula
I Live Here
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I Live Here
Joined: May 2004
Posts: 12,383
Taxes & Virus's R-US, NY
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Both the .474 and .484/284 will want a higher stall than stock. A better cam for a stock convertor'd car is the new Comp Cams .525" lift 231* duration at 50...HL275 or something. This cam works super well with 3.23 gears and stock convertor. We have broken 3 posi units and one drive shaft with it already in our street car. I wouldn't recomend it if we hadn't run it in a bunch of cars and had it outperform eveything else in a nearly stock application.
Last edited by Dragula; 09/24/09 07:02 PM.
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Re: Street Hemi Cam Grind (B/RB)
[Re: Dragula]
#478053
09/24/09 04:07 PM
09/24/09 04:07 PM
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Joined: Jan 2004
Posts: 3,001
Coram, NY
Pool Fixer
master
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master
Joined: Jan 2004
Posts: 3,001
Coram, NY
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I run the 4452993 cam in my charger. 2800 converter block zero decked with SRP flat tops, true 10:1, 346 heads with 2.14/1.81 valves. bowls and short turns blended.
with 1 3/4" headers, 3.55 gears and huge diameter hoosier quick times, I ran a 13.1 @ 105. Didn't to any tuning at all really. that was with an edelbrock eps750 carb, box stock.
I am now running street tires, mighty demon 750, 3.91's, and stock HP manifolds. haven't been to the track though.
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Re: Street Hemi Cam Grind (B/RB)
[Re: GTX MATT]
#478054
09/24/09 08:25 PM
09/24/09 08:25 PM
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Joined: Jan 2003
Posts: 6,531
Jacksonville, FL
Chris2581
master
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master
Joined: Jan 2003
Posts: 6,531
Jacksonville, FL
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Street Hemi Grind cam is a real good one to use.Still using the old one that Dad bought in 1972 in the 383 Road Runner,only cam we ran in that car and went 12.26 in Atlanta with the usual bolt ons and 4.88's with a 4-speed.After I got the car,I put in 3.23's and used the OEM 585 cfm Holley and stock 666 intake and the car ran very well with it.I'm going to stil use the same cam when I finish restoring the car later this year.
Nautilus Racing-
We use Superformance gaskets and Turbo Action converters/products.
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Re: Street Hemi Cam Grind (B/RB)
[Re: Chris2581]
#478055
04/18/10 11:28 AM
04/18/10 11:28 AM
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Joined: Aug 2007
Posts: 6,095
Valencia, España
NachoRT74
master
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master
Joined: Aug 2007
Posts: 6,095
Valencia, España
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floating back this thread... what's the spec at .050 ? on both "Hemi grind" cams old, ( 284/471-474, 108 ) and new ( 280/474, 110 ). I know the newer is rated on manuals as 238 what aparently is really closer to 234 and not 238, as somebody measured sometime ago.
will be nice to get CERTAIN MEASURED SPECS and not simply especulations
With a Charger born in Chrysler assembly plant in Valencia, Venezuela
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Re: Street Hemi Cam Grind (B/RB)
[Re: GTX MATT]
#478056
04/18/10 10:56 PM
04/18/10 10:56 PM
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Joined: Jan 2003
Posts: 1,263
Southwestern Ontario Canada
racealittle
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,263
Southwestern Ontario Canada
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Quote:
So the 280 .474 lift will work just as well? I had thought it was similar but I knew the original hemi grind specs were different.
Would this cam work alright with stock stall and 3.23 or 3.55 gears? It seems a little too big to me.
I'll be in a '68 440, with headers and an Eddy Performer RPM, 800 with vaccuum secondaries.
I've run this cam in my street car for over 10 years. I have a similar combination but run low compression, (around 9.3:1). I often think about putting a mild solid in the car (MP.528), but the combination is just so sweet as a driver. I added eddy rpm heads a few years ago and picked up a surprising 1000 rpm. It also doesn't seem to mind 87 octane.
The 3800 lb car runs mid 12's, 107-109 mph with a stock factory 22-2400 converter and 3.23 gear. It all depends where you shift the car. 4.10 gears are just a little too much and require 6100 rpm shifts to net 12.2 at 111.9 mph.
3.73 or 3.9 gear is the max gear I would ever use if I chose to compete with this cam.
I don't think a cam change is worth the few tenths gain for the few trips to the track. The big fat torque is right there in the driving range at all times for such a mild motor.
Too many cars, too many parts, too little coin, too little space to work in, too little time left to make it all happen!
Update: down to one ride, still too many parts, a little more jingle in the pocket, gaining space, and it's going to happen this year!
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Re: Street Hemi Cam Grind (B/RB)
[Re: NachoRT74]
#478058
04/19/10 07:26 PM
04/19/10 07:26 PM
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Joined: Feb 2005
Posts: 4,311
Prospect, PA
BSB67
master
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master
Joined: Feb 2005
Posts: 4,311
Prospect, PA
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Quote:
floating back this thread... what's the spec at .050 ? on both "Hemi grind" cams old, ( 284/471-474, 108 ) and new ( 280/474, 110 ). I know the newer is rated on manuals as 238 what aparently is really closer to 234 and not 238, as somebody measured sometime ago.
will be nice to get CERTAIN MEASURED SPECS and not simply especulations
Measured by Lew:
280/474 234@0.050, 140@0.200
284/484, 238@0.050, 146@0.200
Don't have the old Hemi Grind #s
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