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Author Topic: Roller cam for a 347  (Read 4108 times)
murphy88
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« on: October 29, 2016, 11:58:30 am »

I ran my 347 at 1/4 mile this year..it is a svo 2 bolt main block. .I just ran a hydraulic cam ..not roller. ..I may switch it to a roller cam this winter. .I will Rev to 6500 rpm...what is a good cam to use ?? I need a better intake also....I run dart Jr steel heads with a 1.94 intake valve..thanks
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cheapbastard
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« Reply #1 on: October 29, 2016, 02:33:08 pm »

More information such as weight of car, rear gearing, type of transmission, compression of engine, type of intake and also intended usage of the car.  You mention the dragstrip but are you looking for a car that is optimized for the dragstrip, mostly street with occasional drag use, daily driver, etc.

My guess is that you will get more responses with more information.  Good luck!
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It sucks to get old but at least the expectations are lower...
65 mustang coupe, 10.4 compression 306, home ported 180 cc Chinese heads, funnel web, Lunati Voodoo Solid flat cam, t5z, 8 inch with 4.62 gears in a locker.
al2
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« Reply #2 on: October 29, 2016, 02:39:20 pm »

I was thinking maybe a mellings 3/4 race cam
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juiced coupe
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« Reply #3 on: October 29, 2016, 03:32:17 pm »

I was thinking maybe a mellings 3/4 race cam

I don't know, that might be a little too much.
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Doing more with less, or something like that.
http://sbftech.com/index.php/topic,20009.0.html

Quote from: Monte Smith
Bottom line, if it was the hot ticket, the fast guys would do it.............they don't

You might need some Titanium rods and a flow bench!  LMAO on floor

I honestly don't get it.

I'm sweating, my heart is racing, my clutch foot is twichin', and my right arm punched the computer screen doing an involentary 2-3 shift while reading all that. 
murphy88
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« Reply #4 on: October 29, 2016, 08:53:51 pm »

It is a maverick. ..C4 Trans 2800 stall..ran 11.90 last year..3 89 gear. ..275 60 15 drag radial...my cam now is 550 lift 280 duration. ..car idles smooth now
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murphy88
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« Reply #5 on: October 29, 2016, 09:00:14 pm »

I will get a rpm air gap intake plus a 4500 stall convertor..700 holley carb to next year
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cheapbastard
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« Reply #6 on: October 30, 2016, 12:25:46 pm »

What was the trap speed in the quarter mile?  Do you know how much it weighs?  What are your goals for the car?
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It sucks to get old but at least the expectations are lower...
65 mustang coupe, 10.4 compression 306, home ported 180 cc Chinese heads, funnel web, Lunati Voodoo Solid flat cam, t5z, 8 inch with 4.62 gears in a locker.
murphy88
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« Reply #7 on: October 30, 2016, 04:03:07 pm »

115 mph in quarter. .3000 pounds with driver..I want 4 more tenths
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juiced coupe
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« Reply #8 on: October 30, 2016, 06:21:49 pm »

I want 4 more tenths

That's asking a lot.

I doubt that going from a Performer RPM to an Air-Gap will net very much.

So, 4 tenths from a little more converter and a cam change? I don't know, maybe.
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Doing more with less, or something like that.
http://sbftech.com/index.php/topic,20009.0.html

Quote from: Monte Smith
Bottom line, if it was the hot ticket, the fast guys would do it.............they don't

You might need some Titanium rods and a flow bench!  LMAO on floor

I honestly don't get it.

I'm sweating, my heart is racing, my clutch foot is twichin', and my right arm punched the computer screen doing an involentary 2-3 shift while reading all that. 
dennis112
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Location: Amish Wonderland of Central Pa.

« Reply #9 on: October 30, 2016, 06:31:57 pm »

An almost free mod would be to remove as much unnecessary weight as you can from the car (and even put yourself on a diet.)  A 100lbs removed can be worth nearly a tenth in the quarter . . .
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Dennis

65' Stang, 434W NA, Victor Heads, Super Vic Intake, 11:1, Braswell Carb, Bullet SR Cam, G101A 4-Speed, 4:56 rear, 93 Octane Pump Gas  9.82@138.00
al2
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« Reply #10 on: October 30, 2016, 08:00:57 pm »

100 hp nitrous system
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juiced coupe
Six figures worth of don't give a f*ck
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Location: Pascagoula, MS
The land mass between New Orleans and Mobile


« Reply #11 on: October 30, 2016, 09:38:23 pm »

100 hp nitrous system

Since he is buying a new converter, I'd definitely get one anti-balooning plates.
Logged

Doing more with less, or something like that.
http://sbftech.com/index.php/topic,20009.0.html

Quote from: Monte Smith
Bottom line, if it was the hot ticket, the fast guys would do it.............they don't

You might need some Titanium rods and a flow bench!  LMAO on floor

I honestly don't get it.

I'm sweating, my heart is racing, my clutch foot is twichin', and my right arm punched the computer screen doing an involentary 2-3 shift while reading all that. 
Ammosteve
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Location: Valdosta, Ga
Steven Daniels


« Reply #12 on: October 31, 2016, 09:19:49 am »

115mph is enough to go 11.50s...

2800 stall is definitely too tight...

Convertor and suspension work should get you there.  I picked up 4 tenths in the 1/8th going from 3800 to a 5400 stall.
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Outlaw Bill
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« Reply #13 on: October 31, 2016, 08:44:03 pm »

Converter should be about 1000-1500 rpm under your shift point.
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scienceguy
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« Reply #14 on: November 01, 2016, 09:44:16 am »

The Performer 302 Air Gap is the same inside as the RPM.
The Performer 351W Air Gap is a little larger inside than the RPM.

An Air Gap on the 302 based 347 won't be worth much.  If going to the looser converter, the logical upgrade would be the Victor Jr. 

Are you going with a hydraulic or solid roller cam?

Have you spoken with any cam companies, such as Bullet?
Mark at Bullet would be a good place to look into.  You'll need the entire valvetrain package...  springs, etc.

Good Luck!
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1966 Mustang, Toploader 4-speed
Pump Gas, Flat Tappet 306
9.88 @ 135.67
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