Author Topic: Guess the horsepower 428CJ....  (Read 11256 times)

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blykins

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Guess the horsepower 428CJ....
« on: December 24, 2019, 06:26:19 AM »
Taking a couple engines to be dyno'd this Friday.  One of which is kind of a "resto-mod" 428CJ deal for a local Thunderbird build.  Rules are the same for this one:  closest without going over, on *corrected* numbers, will get some free goodies. 

*Factory 428 block, 4.140"
*Factory 428 crank, .010"/.010"
*Scat 6.490" rods
*Racetec forged pistons, 1.5/1.5/3mm standard tension ring pack
*Federal Mogul main/rod bearings, rod bearings Calico coated
*One of my custom camshafts, 227/235 @ .050", .600/.612" lift, 112/106 LSA
*Morel hydraulic roller lifters
*9.5:1 compression ratio
*Factory C8OE-N heads, 2.09/1.65 11/32" SI valves, Comp Cams valvetrain, no port work, just good valve job
*Performer RPM intake manifold with plenum divider modifications
*Quick Fuel HR-750 carburetor with choke horn
*Lykins Motorsports non-adjustable roller rockers with POP billet stands, end stands, and spacers
*MSD distributor
*Canton rear sump pickup and pan, Melling standard volume pump
*Edelbrock water pump

Engine has no accessories that will be turning on the dyno.

So, closest on that one without going over with win some free Lykins Motorsports decals.

BONUS:

I'm also taking a 289 that's destined for an ERA Slabside 289 Cobra replica.

Whomever guesses the closest on BOTH engines (this means you have to make a guess for both to be eligible), will win a new set of my rocker arm stand shims that should be arriving next week.

Here's the specs for the 289:

*Factory 289 block, 4.030" bore size
*Factory 289 crankshaft, .010"/.010"
*Scat 5.325" I-beam SBF connecting rods
*Racetec forged pistons, 1.5/1.5/3mm standard tension ring pack
*Compression ratio is 9.7:1
*One of my custom hydraulic rollers, 219/227 @ .050", 110 LSA, .560"/.560"
*Morel hydraulic roller lifters
*Milodon stock style pan and pickup with extra capacity
*World Products Windsor Jr. cylinder heads, no port work, 1.940"/1.600" valves, Comp Cams valvetrain
*Comp Cams full roller rocker arms
*Blue Thunder "Cobra" dual plane intake
*Holley 650 DP carb
*Factory style distributor, recurved, converted to Pertronix
*This engine will be turning the water pump and alternator with an accessory belt

Have fun and happy guessing!  (And Happy Holidays to everyone!)



« Last Edit: December 24, 2019, 08:46:14 AM by blykins »
Brent Lykins
Lykins Motorsports
Custom FE Street, Drag Race, Road Race, and Pulling Truck Engines
Custom Roller & Flat Tappet Camshafts
www.lykinsmotorsports.com
brent@lykinsmotorsports.com
www.customfordcams.com
502-759-1431
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DuckRyder

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Re: Guess the horsepower 428CJ....
« Reply #1 on: December 24, 2019, 06:42:04 AM »
410

281

 8)

Those are some nice looking engines for sure.
Robert

410bruce

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Re: Guess the horsepower 428CJ....
« Reply #2 on: December 24, 2019, 06:51:17 AM »
428--422

289--315
« Last Edit: December 24, 2019, 06:56:47 AM by 410bruce »

price5113

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Re: Guess the horsepower 428CJ....
« Reply #3 on: December 24, 2019, 07:36:04 AM »
428-455hp                                                                                                                                                                                                                                                                 289-340hp

mn67

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Re: Guess the horsepower 428CJ....
« Reply #4 on: December 24, 2019, 08:01:00 AM »
428- 470

289- 317

1971 Maverick Grabber

My427stang

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Re: Guess the horsepower 428CJ....
« Reply #5 on: December 24, 2019, 08:14:12 AM »
CJ - 457 HP
SBF - 364 HP
---------------------------------
Ross
Bullock's Power Service, LLC
- 70 Fastback Mustang, 489 cid FE, Victor, SEFI, Erson SFT cam, TKO-600 5 speed, 4.11 9 inch.
- 71 F100 shortbed 4x4, 461 cid FE, headers, Victor Pro-flo EFI, Comp Custom HFT cam, 3.50 9 inch

6667fan

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Re: Guess the horsepower 428CJ....
« Reply #6 on: December 24, 2019, 08:53:09 AM »
CJ 456 peak hp

JB
JB


67 Fairlane 500
482 cid 636/619.
Tunnel Wedge, Survival EMC CNC heads, Lykins Custom Hydraulic Roller, Ram adjustable clutch, Jerico 4-spd, Strange third member with Detroit Locker, 35 spline axles, 4.86
10.55@125.74 1.46 60’

jwrmach1

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Re: Guess the horsepower 428CJ....
« Reply #7 on: December 24, 2019, 09:29:14 AM »
440 Hp - 428
352 Hp - 289
JWR

shady

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Re: Guess the horsepower 428CJ....
« Reply #8 on: December 24, 2019, 10:45:00 AM »
BB-468
SB-368
What goes fast doesn't go fast long'
What goes fast takes your money with it.
So I'm slow & broke, what went wrong?
2021 FERR cool FE Winner
2022 FERR cool FE Winner
2023 FERR cool FE Winner

machoneman

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Re: Guess the horsepower 428CJ....
« Reply #9 on: December 24, 2019, 11:16:40 AM »
444 on the 428.
369 on the 289
Bob Maag

gregb

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Re: Guess the horsepower 428CJ....
« Reply #10 on: December 24, 2019, 11:34:10 AM »
428  -  430HP

289  -  325HP

DuckRyder

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Re: Guess the horsepower 428CJ....
« Reply #11 on: December 24, 2019, 11:41:57 AM »
Boy, I musta missed something on the Windsor because folks are thinking that thing is a real hero...
Robert

plovett

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Re: Guess the horsepower 428CJ....
« Reply #12 on: December 24, 2019, 11:52:35 AM »
Boy, I musta missed something on the Windsor because folks are thinking that thing is a real hero...

The SBF has decent cylinder heads.  Windsor Jr's.

plovett

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Re: Guess the horsepower 428CJ....
« Reply #13 on: December 24, 2019, 12:48:00 PM »
410 hp for the 428

330 hp for the 289

427LX

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Re: Guess the horsepower 428CJ....
« Reply #14 on: December 24, 2019, 01:04:51 PM »
415 for 428

300 for 289