408 Magnum HP Guesses

Yamridr38 · Nov 13, 2020

Any ideas on my new 408 HP?

5.9 Magnum .30 over
Edelbrock RPM 58cc aluminum heads
Edelbrock RPM air gap intake
Holley 700
4.00 Scat forged crank
forged scat rods
27cc forged Icon pistons around 10.1 compression
Comp xr286hr-10 236 242 @50 .580 lift
Comp 1.6 roller rockers
Hooker comp headers

jrlegacy23 · Nov 13, 2020

382 HP

autoxcuda · Nov 13, 2020

450-500

dano · Nov 13, 2020

Enough in the right chassis.

Heywodja · Nov 13, 2020

1,000,000 horsepower

Dartsun · Nov 13, 2020

435hp

WTruo · Nov 13, 2020

395 then after some tweaking you'll break the 400.

jbc426 · Nov 13, 2020

Hughes 408 kit
Cast crank
Forged rods
Hypereutectic mid compression (10.2 to 1 = 200 psi cranking compression)
Edelbrock Heads w Hughes Super Prep + additional port work
Hughes HER4652 108*, .555 In & .540Ex, 246* & 252* @.050
1.6 to 1 rockers
Airgap EFI
Hughes Big Gulp throttle body
Ford 4-hole 45 GPH injectors
TTI step headers w 3 inch full exhaust
Reflashed factory ECU from Chris @ Performance Injection Equipment

Measured on a chassis dyno through a 2004R & 3.91's & Converter has a 3800 stall.

Yamridr38 · Nov 13, 2020

dano said:
Enough in the right chassis.

going in a 71 scamp

mopowers · Nov 13, 2020

What is a 408 Magnum HP?

WTruo · Nov 13, 2020

mopowers said:
What is a 408 Magnum HP?

A gun that the condom brand makes.

TT5.9mag · Nov 13, 2020

jbc426 said:
Hughes 408 kit
Cast crank
Forged rods
Hypereutectic mid compression (10.2 to 1 = 200 psi cranking compression)
Edelbrock Heads w Hughes Super Prep + additional port work
Hughes HER4652 108*, .555 In & .540Ex, 246* & 252* @.050
1.6 to 1 rockers
Airgap EFI
Hughes Big Gulp throttle body
Ford 4-hole 45 GPH injectors
TTI step headers w 3 inch full exhaust
Reflashed factory ECU from Chris @ Performance Injection Equipment

Measured on a chassis dyno through a 2004R & 3.91's & Converter has a 3800 stall.

View attachment 1715629527

That thing makes killer torque. Great wheel numbers.

jbc426 · Nov 13, 2020

TT5.9mag said:
That thing makes killer torque. Great wheel numbers.

The 2004R has a 2.76 to 1 first gear ratio. That with the 3.91's, the 3800 rpm stall converter, and being able to nearly dead hook on the street when the tires are warm has put more than a few people right in shock.

Dartsun · Nov 13, 2020

jbc426 said:
The 2004R has a 2.76 to 1 first gear ratio. That with the 3.91's, the 3800 rpm stall converter, and being able to nearly dead hook on the street when the tires are warm has put more than a few people right in shock.

View attachment 1715629560

Cool picture. Where is that at?

TT5.9mag · Nov 13, 2020

jbc426 said:
The 2004R has a 2.76 to 1 first gear ratio. That with the 3.91's, the 3800 rpm stall converter, and being able to nearly dead hook on the street when the tires are warm has put more than a few people right in shock.

View attachment 1715629560

Nice. I really like your car a lot. I’ve followed it for a while on here now.

jbc426 · Nov 13, 2020

Dartsun said:
Cool picture. Where is that at?

It was at Willow Springs Raceway just before Spring Fling a few years back.

Mopar Vince · Nov 15, 2020

Mine from BPE makes 467 hp and 514 tq

mopowers · Nov 15, 2020

Mopar Vince said:
Mine from BPE makes 467 hp and 514 tq
View attachment 1715631193

Good lookin numbers! Has the car been to the track at all?

Mopar Vince · Nov 15, 2020

mopowers said:
Good lookin numbers! Has the car been to the track at all?

No track time yet.
Its only been in the car a few days.
I'm only at about 100 miles as of today.
It sure will boil the BFGs though at the tap of the throttle though.
I'm thinking traction may be an issue.

Yamridr38 · Nov 16, 2020

Mopar Vince said:
Mine from BPE makes 467 hp and 514 tq
View attachment 1715631193

Whats the build info on your motor?

Mopar Vince · Nov 16, 2020

BPC4085CTC
Complete Mopar 408 Stroker,
• HP & Torque: 465 HP / 494 FT LBS
• Compression Ratio: 10:1
• Aluminum Heads
• Roller Cam
• Cast Steel Crank
• Forged Pistons
BLOCK:
• Hand picked seasoned Magnum block
• Square and parallel decked
• Align honed main bearing bore
• Cylinders honed on computer controlled machine to within .0002 straightness and roundness
• Cylinders are sonic tested for thickness
• 2-Bolt Main
• 4.000" Bored .040" over
• 2-Piece Rear Main Seal
• Mech fuel pump provision: Yes
ROTATING ASSEMBLY:
• New Steel crankshaft
• 4.000" Stroke
• Forged Magnum 6.123" connecting rods w/ 150,000 psi bolts
• Forged pistons
• Externally balanced
CYLINDER HEADS:
• BluePrint Engines Assembled and Machined Edelbrock 61769 Casting
• Aluminum Magnum Pattern Cylinder Heads - 58cc chamber
• Aluminum Roller Rockers
• 2.02" intake/1.60" exhaust valves
• 176cc intake/75cc exhaust runners
CAM SPECS:
• Cam Type: Roller
• .580 Intake .577 Exhaust
• 235 Intake / 242 Exhaust duration
• @ .050 - 110 degree lobe separation
IGNITION TIMING:
• 34 degrees total at 4000 RPM

Yamridr38 said:
Whats the build info on your motor?

Yamridr38 · Nov 16, 2020

Mopar Vince said:
BPC4085CTC
Complete Mopar 408 Stroker,
• HP & Torque: 465 HP / 494 FT LBS
• Compression Ratio: 10:1
• Aluminum Heads
• Roller Cam
• Cast Steel Crank
• Forged Pistons
BLOCK:
• Hand picked seasoned Magnum block
• Square and parallel decked
• Align honed main bearing bore
• Cylinders honed on computer controlled machine to within .0002 straightness and roundness
• Cylinders are sonic tested for thickness
• 2-Bolt Main
• 4.000" Bored .040" over
• 2-Piece Rear Main Seal
• Mech fuel pump provision: Yes
ROTATING ASSEMBLY:
• New Steel crankshaft
• 4.000" Stroke
• Forged Magnum 6.123" connecting rods w/ 150,000 psi bolts
• Forged pistons
• Externally balanced
CYLINDER HEADS:
• BluePrint Engines Assembled and Machined Edelbrock 61769 Casting
• Aluminum Magnum Pattern Cylinder Heads - 58cc chamber
• Aluminum Roller Rockers
• 2.02" intake/1.60" exhaust valves
• 176cc intake/75cc exhaust runners
CAM SPECS:
• Cam Type: Roller
• .580 Intake .577 Exhaust
• 235 Intake / 242 Exhaust duration
• @ .050 - 110 degree lobe separation
IGNITION TIMING:
• 34 degrees total at 4000 RPM

Thanks, sounds like its about the same build as mine.

jbc426 · Nov 16, 2020

Mopar Vince said:
No track time yet.
Its only been in the car a few days.
I'm only at about 100 miles as of today.
It sure will boil the BFGs though at the tap of the throttle though.
I'm thinking traction may be an issue.

View attachment 1715631243

No headers on that motor? Do you have any plans on seeing what it will put out on a chassis dyno?

I found regular street radials to dangerous to drive on, and switched over to Nitto Drag radials. It helped a lot with traction issues. They work just as well in the rain as the BFG's too.

Mopar Vince · Nov 16, 2020

jbc426 said:
No headers on that motor? Do you have any plans on seeing what it will put out on a chassis dyno?

I found regular street radials to dangerous to drive on, and switched over to Nitto Drag radials. It helped a lot with traction issues. They work just as well in the rain as the BFG's too.

There will probably be some TTI shorties and x-pipe exhaust coming in the future.
I need some time to recover financially from the new motor and trans.
I'll probably just use my butt dyno for the foreseeable future.
I'm still taking it kinda easy as I am only "about?" 200 miles (broken speedo and odometer) as of tonight of my 500 break-in period.

RustyRatRod · Nov 17, 2020

20.1 HP

408 Magnum HP Guesses

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