[TPR] JB 351C build info

[John Bentley]

I have not decided on carb. Looking at

Holley 4150
Holley XP
Demon SPD750

Anyone have ideas?

My plan is to get the engine installed and running with my existing carb. Then head to a chassis dyno to get a reference and then swap carbs. So, I have some time :)

JB 


Sent from my iPad

> On Nov 4, 2021, at 6:22 PM, DENNIS ANTENUCCI <TEAMPANTERA at yahoo.com> wrote:
> 
> 
> Absolutely awesome performance on the dyno. Thank you JB for sharing specifics so unselfishly.
> You are the Man.  
>  
> Share with us what Carb you are adding?
> Before I went IR-EFI just adding a flowed and balanced  Holly (think it was 830cfm)  gained another 15-20 HP to my old 377ci Cleveland stroker on chassis dyno and more importantly for me drivability improved a great deal. I think the added money is worth it. You may not need it or want it but its worth a consideration.
> FWIW
>  
> Dawg
>  
> Sent: Thursday, November 4, 2021 4:53 PM
> To: tpr
> Subject: [TPR] JB 351C build info
>  
> It has taken a while, but I put together a list of parts for my engine.  The short of it is; you can use your stock block, crank, heads, flywheel, vibration dampener, Pantera headers and still fit it all under the screen while making over 500 HP and have great efficiency.
>  
> Attached is a plot and a table showing AFR and BSFC.  It is very efficient.  Less than 0.3 at some RPM's!!!  You can see the AFR is a little messed up but you can also see it in the HP plot around 4700.  The imbalance on each side is due to the carb.  I could not get a new carb delivered to the shop before it was removed from the dyno.
>  
> Stock Ford 4-bold main block
> All cylinders sleeved, Melling sleeves, standard bore
> Lifter bores bushed
> Oil restrictor kit installed
> Standard oil pump
> Iwis (Germany) double roller timing chain and gears
> Stock Ford 4-MA nodular iron crank
> Flat top Racetech custom forged pistons, 10.5:1
> Custom cam from Gromm Racing, 246/258 @ .050, 700 total valve lift, 112 LSA
> Armondo 10-quart oil pan
> Scat forged H-beam rods
> Stock Ford flywheel, external balance
> Stock Ford vibration dampener
>  
> Stock Ford 4V closed chamber iron heads, ported/flowed
> Stainless roller rockers
> Rocker stud girdles
> Pushrod guideplates
>  
> Blue Thunder low profile dual-plane intake
> Smallish collector Pantera headers
> Holley 0-4778 700CFM carb (has some issues)
> MSD ignition
> 91 octane pump gas
>  
> 531HP, 477 ft/lb torque
>  
> Gromm Racing will sell this amazing cam if you have a similar build or can supply a complete engine.  Give Semir a call for the details
>  
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