Project Boss 302

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Post  dfree383 on November 17th 2013, 4:01 am

Putting together a Boss 302 engine for the 1970 Mustang I picked up a few months back off Mikey.

Here's what it is.......

Standard Bore Ford A4 Block.
Old Velasco 3.100 Stroke Forged Crank
5.400 Carrillo Rods
JE Domed Pistons (Works out to about 10.5:1 after cutting the domes a little)

Comp Cam Mechanical 242 246 @ .050 .586 .564 lift on a 106
Set of EDM Lifters
Set of pocket Ported Oz 2V CC heads with 2.10 1.71 SS Milodon Valves (Haven't flowed them but some one did a nice job on them)
3/8 .080 pushrods
1.73 Comp Steel Rockers

Trans Am Style Aviaid Road Race Pan and Pick-up
Track Boss Single Plane Intake
650 Double pumper for now (going to put one of those self contained EFI units on it later)
Hooker 1 7/8 Headers

Looking for about 425-450hp out of it.

Balance if the driveline is a TKO600 5 speed and a 9" with some 3.89 Gears.

Project Boss 302   312boss1_zpsf0846859


Last edited by dfree383 on November 17th 2013, 4:07 am; edited 1 time in total
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Post  dfree383 on November 17th 2013, 4:05 am

Here's some additional Pictures

Project Boss 302   124c661a-d361-4384-96dd-fc507ad1d7e5_zps05139b2e

Project Boss 302   Boss3122_zpscd186101

Project Boss 302   Photo3_zps04e89d4f

Project Boss 302   RBlock_zpsd4fd278c

Project Boss 302   RBlock3_zpse16a487c

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Post  res0rli9 on November 17th 2013, 6:16 am

Nice..Smile 

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Post  QtrWarrior on November 17th 2013, 7:45 am

Heads by Mark DeGroff, Northridge Ca...Cool 
Mark ran a 65 Mustang Super Stock car back in the day.

I'll look around, I might have the flow sheets...

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Post  dfree383 on November 17th 2013, 7:47 am

Cool
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Post  nuclearcobra on November 18th 2013, 6:51 pm

Cool deal Very Happy  , one day I'll do a similar combo , I still have a B&A Track Boss 351 intake, stage 2 rods from PAW and .040 Sterling dome pistons and rings still new in the boxes from 17 years ago Shocked I was planning on doing a Clever 351 for the 76 cobra 2
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Post  460pulling on November 18th 2013, 7:02 pm

Looks like it is going to be a sweet setup. When I picked up my engine good ol Jet boat gave me a tour and I got to see this firsthand. Should be a nice setup. Very Happy 

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Post  jeffgfg on November 18th 2013, 8:06 pm

Dave you have the coolest stuff, would you consider adopting a 58 year old to take care of your stuff while you're away???? Years ago (70's) My at the time engine builder had a Boss 302 Mustang with Hilborn stack injection on it that he ran on the street. Used Holly fuel bowl to regulate the fuel somehow, at 9 grand it was screaming and going fast. He had a bunch of different intakes for Boss 302's but that one was the coolest.

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Post  richter69 on November 18th 2013, 8:14 pm

seems kinda weak.........

Coug turns his 10,000 rpm........
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Post  dfree383 on November 18th 2013, 11:31 pm

Thanks Jeff, I have a real soft spot for 351c's and Boss 302's, first engine I ever built was a 351c.

This one is no 10,000 rpm screamer, occasional 7,000, when I feel the need, cruiser.


Last edited by dfree383 on November 19th 2013, 9:48 am; edited 1 time in total
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Post  dfree383 on November 18th 2013, 11:33 pm

nuclearcobra wrote:Cool deal Very Happy  , one day I'll do a similar combo , I still have a  B&A Track Boss 351 intake,  stage 2 rods from PAW and .040 Sterling dome pistons and rings still new in the boxes from 17 years ago Shocked I was planning on doing a Clever 351 for the 76 cobra 2  
I'm like you I have more stuff in storage then I can remember......Laughing Laughing Laughing 
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Post  whatbumper on November 19th 2013, 1:09 am

Those things can make some power.  We've been 625 with those heads on a 408.

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Post  johndickjr on November 24th 2013, 4:56 pm

my g-pa had a real boss 302 in his fairmont, with a doug nash 5 speed, shifted it at 12,500, even the chevy guys loved to hear that motor sing, ran 9.70s back in the late 1980 early 1990s

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Post  maverick on November 25th 2013, 9:24 am

johndickjr wrote:my g-pa had a real boss 302 in his fairmont, with a doug nash 5 speed, shifted it at 12,500, even the chevy guys loved to hear that motor sing, ran 9.70s back in the late 1980 early 1990s
Shocked Spinning at 12,500, when one part breaks, they ALL break. cherry 
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Post  dfree383 on December 12th 2013, 7:39 am

Hitting the Dyno next week
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Post  jeffgfg on December 12th 2013, 9:43 am

Cool keep us posted!!

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Post  69F100 on December 12th 2013, 1:55 pm

dfree383 wrote:Thanks Jeff, I have a real soft spot for 351c's and Boss 302's, first engine I ever built was a 351c.

This one is no 10,000 rpm screamer, occasional 7,000, when I feel the need, cruiser.



Dave my 1st hot rod engine I built was also a 1970 351c with 4v heads I still have what is left of the piston and s shaped rod
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Post  dfree383 on December 16th 2013, 1:32 pm

Should be on the dyno late this week.
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Post  dfree383 on December 19th 2013, 10:00 pm

Got the cam broke in and swapped springs today, couple of short pulls got 380 hp at 6000 and still heading north. Back on it in the morning.

Might need to put a little smaller cam in it, but need to do some tuning first.
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Post  QtrWarrior on December 19th 2013, 10:43 pm

Not bad Dave...

Good to see those parts getting used.. Cool 
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Post  dfree383 on December 20th 2013, 9:06 am

Project Boss 302   Image_zpsdd6a3a3b
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Post  jeffgfg on December 20th 2013, 10:05 am

Nice Dave!!! Good luck today!! What kind of Hp you think it will make??? What did you want it to make??? Sounds fun what ever it does.  Basketball 

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Post  richter69 on December 20th 2013, 3:54 pm

Update....
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Post  schmitty on December 20th 2013, 3:57 pm

I'm gonna guess 649
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Post  dfree383 on December 20th 2013, 5:08 pm

425.7 hp @ 6700
362.7 tq @ 5700
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