LT4 Supercharged Crate Engines Now Available

[Schwartz Performance]

The new LT4 supercharged crate engines are now available!







Your price from Schwartz Performance:

Wet sump: $13,237.50 & FREE SHIPPING to the 48 states! (PN 19368622)
Dry sump: $14,185.56 & FREE SHIPPING to the 48 states! (PN 19332702)

controller kit: Depends on which transmission, but around $2200-2400 & FREE SHIPPING to the 48 states! (PN TBD)


Call to order, or visit the following links:
http://www.schwartzperformance.com/p...en-5-19368622/
http://www.schwartzperformance.com/p...en-5-19332702/



Specs for LT4 crate engine:


19332621 LT4 6.2 L 650 HP Supercharged Crate Engine with wet sump
As heart of the Corvette Z06, the supercharged LT4 6.2L SC is the most powerful engine ever offered in a regular production Chevrolet. It features a more-efficient, more-compact 1.7L Eaton R1740 TVS supercharger, which spins at up to 20,000 rpm. That’s enough to generate more than 9 pounds of boost and help produce 650 horsepower and 650 lb.-ft. of torque.
The LT4 is based on the same Gen V Small-Block architecture as the LT1 engine, with several unique features designed
to support its higher output and the greater cylinder pressures created by forced induction. They include Rotocast
A356T6 aluminum cylinder heads that are stronger and handle heat better than conventional castings, lightweight
titanium intake valves and stronger forged aluminum pistons.




TECH SPECS
Part Number: 19332621 (wet sump)
19332702 (dry sump)
Engine Type: Gen V Small-Block V-8
Displacement (cu in): 376 cu in (6.2L)
Bore x Stroke (in): 4.065 x 3.622 (103.25 x 92mm)
Block: Cast aluminum with 6-bolt, cross-bolted main caps
Crankshaft: Forged steel
Connecting Rods: Forged powdered-metal steel
Pistons: Forged aluminum
Camshaft Type: Hydraulic roller
Valve Lift (in): 0.492 intake / 0.551 exhaust
Camshaft Duration (@0.050 in): 189° intake / 223° exhaust
Cylinder Heads: A356T6 Rotocast aluminum; as cast with 65.5cc chambers
Valve Size (in): 2.130 intake / 1.590 exhaust
Compression ratio: 10:1
Rocker Arms (P/N 12619829):
Investment cast, roller bearing trunnion
Rocker Arm Ratio: 1.81:1
Recommended Fuel: Premium pump
Maximum Recommended RPM: 6,600
Reluctor Wheel: 58x
Balanced: Internal


INSTALLATION NOTES
• Assembly does not include electronics - use P/N 19331517 LT4
controller kit to operate engine
• Dry sump engine requires production or after-market oil lines
and oil tank (not included)
• Flywheel included
• Intended for pre-1976 street vehicles or any off-road vehicles
• Not intended for marine applications
• Crankshaft has 8-bolt flywheel mounting pattern
• Engine includes direct injection, VVT and Active FuelManagement



Engine Includes:
• Fully GM assembled long block
• Ignition Coils, Plug Wires and Spark Plugs
• Oil pump, pick-up and oil pan (dry sump or wet sump)
• Exhaust Manifolds
• Intake, Injectors and Throttle Body
• High Pressure fuel pump (installed under intake)
• 14” Auto Trans Flexplate (11.063 tc pattern, 8-bolt crank)
• Harmonic Balancer
• Front timing cover
• Aluminum Water Pump
• Oil Filter
• Warranty:General Motors limited 2 year / 50,000 mile parts & labor warranty


------------------------------------------------------------------
These engines are a bit different than the LS.


-Engine mount pattern is different by 1 bolt on the top.
-The new C7 has electric steering. We have a serpentine setup available for $3095 but it will only work for wet sump engines at this time.

Factory setups:
Wet sump serpentine part number 19332590
Dry sump serpentine part number 19322614
Dry sump A/C add-on part number 19332591

-LT1/4's have an 8-bolt crankshaft pattern, which is the same pattern as the LSA. The clutch/flywheel kits for the LSA fit the LT1/4.
-The bell housing pattern is just about identical.. But the top bolt is in a different location. There is a special bell housing that GM offers for the 4L60-70E that will work, but you'll need to beef up one of those transmissions to last behind an LT4. The 4L85e works, except the top bolt cannot be utilized.
-The GM steel bell housing for T56's has the hole in the right spot, and accepts their clutch kit.
-There are TWO different oil pans - dry sump & wet sump. The wet sump pan is large just like LS3 Camaro pans, but the wet sump LT1 pan fits with better ground clearance. The LT1 pan can be modified on the front of the sump to clear crossmembers just like the Corvette LS3 and LS1 Camaro pans. The LT4 wet sump comes in the 2016 CTS-V.


-Dale

[RLJ676]

Wow, seems like a really fair price compared to the LS9...

[parsonsj]

Oh yes! I paid $23K for an LS9 2 years ago.

[rchaskin]

Wow, seems like a really fair price compared to the LS9...

That I what I was thinking. Not much more than a LSA.

Now what I would like to see is the LS3s go down to about $3500.....LOL.

[Schwartz Performance]

Lol you paid II Much John.. Sorry, had to.

Yes very nice price for this.

The Ls3 will never get that cheap.. It'll be phased out soon most likely.

-Dale

[andrewb70]

....It'll be phased out soon most likely.

-Dale

Define soon. Chevrolet performance just release the ZZ6, that engine has been around for a very long time. I see the LS3 sticking around as the bench mark for Gen IV performance. I also see the LSA sticking around for a long time as well.

Personally, as of right now, the LSA is a more viable option for most swaps. The LT4/LT1 are poorly supported in the aftermarket and until that changes, the Gen IV engines will rule.

Andrew

[Cdog]

Define soon. Chevrolet performance just release the ZZ6, that engine has been around for a very long time. I see the LS3 sticking around as the bench mark for Gen IV performance. I also see the LSA sticking around for a long time as well.

Personally, as of right now, the LSA is a more viable option for most swaps. The LT4/LT1 are poorly supported in the aftermarket and until that changes, the Gen IV engines will rule.

Andrew

Msd already has a intake for the lt1.

[andrewb70]

Msd already has a intake for the lt1.

Yes, but that's not the challenge for swaps. The exhaust is different, the bellhousing is slightly different, the engine mounts are different, the accessories are different, etc.. The aftermarket will need to catch up before these swaps are viable to the masses.

Andrew

[parsonsj]

you paid II Much

II Funny!

Yes, but that's not the challenge for swaps. The exhaust is different, the bellhousing is slightly different, the engine mounts are different, the accessories are different, etc.. The aftermarket will need to catch up before these swaps are viable to the masses.

I think the biggest problem is fuel supply. How does the LT1 generate such high rail pressure?

[Schwartz Performance]

An extra fuel pump under the intake.
The fuel system as controller requires pwm and a pressure sensor.

-Dale

[andrewb70]

II Funny!

I think the biggest problem is fuel supply. How does the LT1 generate such high rail pressure?

That's the easy part. See what Dale said.

Andrew

[Cdog]

Yes, but that's not the challenge for swaps. The exhaust is different, the bellhousing is slightly different, the engine mounts are different, the accessories are different, etc.. The aftermarket will need to catch up before these swaps are viable to the masses.

Andrew

I'll be able too document all of that in the coming my months. Were going to make our own engine mounts and push the engine back into the firewall. I'm waiting on the bell housing to ship from GM performance.

S&p has headers & power steering acc. I'm waiting to see Katech's dry sump set up. A company named Sweets makes a power steering pump that will run off the back of the dry sump pump.

The fuel pump from the tank runs 70-75 psi. The high pressure pump in the intake is cam driven.

Cool/new stuff. Were excited to do something new instead of bolting together another LS engine.

[parsonsj]

Dog, on the power steering, have you looked at an electric setup? Flaming River makes one. I think Ididit does too.

[Chad-1stGen]

The better question is how do you keep it from overheating like all the Z07's that get tracked? :D

[Cdog]

Dog, on the power steering, have you looked at an electric setup? Flaming River makes one. I think Ididit does too.

I have. I've done quite a bit of reading on them and every body says they suck unless your putting one in a street rod/hot rod put put show car.

There are two electric pumps that seem to do well for rock crawler guys. A Volvo pump and a pump out of a Toyota Mr2. Both meet the needs for the GM/dse rack my AM frame uses. There are dumb pump versions of both that don't have all the speed sensors and what not. I had planned on going with the S&p mechanical pump to keep it simple. They have a kit for $830 that uses the stock acc. A cover/pulley for the crank/harmonic balencer to run a second forward belt to run a PS pump in a LS3 position.

But I really like this set up if I can get it to work. https://sweetmfg.biz/product.php?pro...&cat=27&page=1

[71RS/SS396]

Lol you paid II Much John.. Sorry, had to.

Yes very nice price for this.

The Ls3 will never get that cheap.. It'll be phased out soon most likely.

-Dale

I doubt the LS3 will go away soon.... Mercury Marine is using them in boats now so I suspect they will be around for awhile.

[Schwartz Performance]

The better question is how do you keep it from overheating like all the Z07's that get tracked? :D

That problem is caused by inadequate airflow through the radiator, and the size of the radiator. Won't be an issue on most swaps!

-Dale

[Schwartz Performance]

Lol you paid II Much John.. Sorry, had to.

Yes very nice price for this.

The Ls3 will never get that cheap.. It'll be phased out soon most likely.

-Dale

I doubt the LS3 will go away soon.... Mercury Marine is using them in boats now so I suspect they will be around for awhile.

This is true.. I was just referring to GM's past on LS's. Figured they'd be gone once GM stops production cars with them.. But I supposee not!

-Dale

[parsonsj]

The better question is how do you keep it from overheating like all the Z07's that get tracked?

I agree a bit. Supercharged cars are a real handful to keep cool on the track. However, the LS9 Corvettes and LSA Cadillacs have the same problem -- it's not new on the C7. Lots of Corvette guys are questioning GM on why the new Z06 (which is supposedly a track-oriented car) is blown.

[parsonsj]

So the engine generates its own rail pressure from a 5 bar feed from the tank? That does make the fuel problem a lot easier than I thought.