Mast Motorsports is now shipping our LSX 454 crate engines. They are intended to be a value Street/Strip 454 that uses the LSX block and makes track worthy power without sacrificing drivability. These engines come fully calibrated and ready to run, no additional tuning required. They include the necessary parts to get them running such as M-90 ECM, wiring harness, starter, air filter, and throttle pedal. All that is required to run these engines is to supply them with 60 psi fuel pressure, supply battery power to the starter, and connect the 4 circuits for the ignition and clutch/park lockout switches. It is about as simple of an install as possible with an EFI engine. We just got this engine off the dyno and it made 585HP/590TQ, which is very solid for how mild it runs. We currently have 8 of these in stock. We normally list these at $13,479, but we are offering these initial engines for $12,999 until March 31, 2008. This is a complete turnkey package that delivers more power for much less money when compared to the LS7. Dyno data, included components, included electronics, and unique capabilities of the M-90 ECM are shown below.

Included Components:
Complete Blueprinted 454ci LSX
GMPP LSX Block
11:1 Compression Ratio
4.185” Bore Diamond Pistons
4.125” Stroke Callies Crank w/ACL Bearings
6.125” Compstar Rods w/ACL Bearings
GMPP LS3/L92 Cylinder Heads
Cometic Head Gaskets
ARP Head Bolts
ARP Main Studs
Mast Motorsports Spec. Camshaft
LS3 Front Cover and Crank Pulley
Manley Pushrods
Upgraded Valvesprings
GMPP L76 Intake w/LS7 Injectors
90mm Drive-By-Wire Throttle
GM Drive-By-Wire Foot Pedal
Mast Motorsports 8 Layer Air Filter w/Integrated IAT Sensor
GM Smart Coils, Spark Plugs, and Spark Plug Wires
All Engine Sensors (Including Oil Temperature)
Water Pump
F-Body Oil Pan
Oil Filter
Starter
Mobil 1 Synthetic Oil

Included Electronics:
M-90 ECM
Engine Wiring Harness
Dash Control Harness
MAP/IAT Harness
Transmission Harness for GM VSS
Bosch Narrow Band O2 Sensor (Wideband O2 available for an additional $299)
O2 Sensor Harness
Fuel Pump Control Harness
Electric Fan Control Harness
Mast Motorsports Integrated Fuse Block

Unique Capabilities:
Drive-By-Wire Throttle
Wideband Knock Control
Adaptive Spark Control
Closed Loop Fuel Pressure Correction
Drive-By-Wire Throttle Based 2-Step Rev Limiter
Push Button Fast Idle Option
Integrated Gauge Drivers
CAN Gauge Capabilities
Fully Integrated Fuel Pump Control
Fully Integrated Electric Fan Control
Vintage Air A/C Control



Shaun
www.mastmotorsports.com

 

For all that you get that is a damn good deal!!!

 

What if I just wanted the crate motor without all the electronics?

 

That tq is freakin ridiculous! I wonder how it would run on an LS7 top end...hmmm

 

We just got the LSX 454 HO off the dyno. The difference between this engine and the one listed in the first post is the addition of a more aggressive camshaft and Mast Motorsports CNC LS3/L92 Heads. This engine comes as a TURN KEY package that is complete and ready to run. It is priced at $14,399 and includes M-90 ECM and wiring harness. Dyno data, included components, included electronics, and unique capabilities of the M-90 ECM are shown below.

Included Components:
Complete Blueprinted 454ci LSX
GMPP LSX Block
11:1 Compression Ratio
4.185” Bore Diamond Pistons
4.125” Stroke Callies Crank w/ACL Bearings
6.125” Compstar Rods w/ACL Bearings
Mast Motorsports CNC LS3/L92 Cylinder Heads
Cometic Head Gaskets
ARP Head Bolts
ARP Main Studs
Mast Motorsports Spec. Camshaft
LS3 Front Cover and Crank Pulley
Manley Pushrods
Upgraded Valvesprings
GMPP L76 Intake w/LS7 Injectors
90mm Drive-By-Wire Throttle
GM Drive-By-Wire Foot Pedal
Mast Motorsports 8 Layer Air Filter w/Integrated IAT Sensor
GM Smart Coils, Spark Plugs, and Spark Plug Wires
All Engine Sensors (Including Oil Temperature)
Water Pump
F-Body Oil Pan
Oil Filter
Starter
Mobil 1 Synthetic Oil

Included Electronics:
M-90 ECM
Engine Wiring Harness
Dash Control Harness
MAP/IAT Harness
Transmission Harness for GM VSS
Bosch Narrow Band O2 Sensor (Wideband O2 available for an additional $299)
O2 Sensor Harness
Fuel Pump Control Harness
Electric Fan Control Harness
Mast Motorsports Integrated Fuse Block

Unique Capabilities:
Drive-By-Wire Throttle
Wideband Knock Control
Adaptive Spark Control
Closed Loop Fuel Pressure Correction
Drive-By-Wire Throttle Based 2-Step Rev Limiter
Push Button Fast Idle Option
Integrated Gauge Drivers
CAN Gauge Capabilities
Fully Integrated Fuel Pump Control
Fully Integrated Electric Fan Control
Vintage Air A/C Control



Here is a shot of our CNC cylinder heads.



Shaun
www.mastmotorsports.com
shaun@mastmotorsports.com

 

454ci with only 480 RWHP (using .18% drivetrain loss for an A4)

 

Youre assuming thats even RWHP, Im not sure, It may have been flywheel HP.

 

Actually, I think he is figuring drivetrain loss based on the numbers posted in the thread being engine dyno numbers and not rwhp numbers.

The numbers look fine for a chassis dyno, but kind of low for an engine dyno...

 

Yes true, the odds are it is engine dyno numbers, would be too difficult to claim RWHP numbers being every vehicles drivetrain would net different losses.

However with some worked heads, the second numbers net 510rwhp thru a typical A4 setup, those are some pretty nice numbers for what they claim to be a very mild and street friendly combo.

Would obviously see more thru a M6.

Also notice the torque from 3500rpm+, thats beauty lol.

PLUS note its complete starter to air filter, AND requires no tunning. Truely plug and play. Factor all those things in, its truely an excellent value, and innovative offer.

 

Do you have some numbers and hp/torque curves for the VVT 454?

Low end torque makes a daily driver more fun to drive.

 

Great setup for a street rod.

 

I don't have complete data like what you are looking for, but the VVT LSX 454 that we did made right at 500 FT-LB. way down at 2500 RPM! Just to let you know though, we are not planning to offer that setup as part of our engine line.

 

On your web site it says that this engine dynos at 640hp... Whats the difference?

Blessings,

 

I think your package is great, but I'm wondering also.... I've seen LS7 vettes with heads and cam pushing your numbers at the wheels, and thats only a 427.

 

It is the same engine. Thanks for pointing that out typo...I'll get it changed.

 

Very nice.

 

damn, I was really looking forward to the VVT 454.


this looks like a great combo though

 

Nice numbers for a turn key motor. The torque from big inch motors is awsome.

 

With the longish 6.125 rods I calculate a compression heigt of only 1.05". Do you mind me asking what ring pack you are using to make this thing not gulp oil on the street? Or is this not really a street motor?

 

1.050" isn't a huge deal in a N/A application and is kind of an accepted evil in the LS world.