LT5 DRY Sump LONG BLOCK C7 ZR1 Corvette Gen V Crate Engine 6.2L - 12687020

IN STOCK AS OF 7/10/26, BUT EMAIL OR CALL TO VERIFY BEFORE ORDERING.

THESE ARE THE LAST REMAINING LT5 LONG BLOCKS LEFT IN THE COUNTRY.

THESE ARE BRAND NEW "SERVICE" LONG BLOCKS FOR THE 2019 C7 ZR1.

PRICE INCLUDES FREE FREIGHT TO A COMMERCIAL ADDRESS.

PAYMENT BY WIRE TRANSFER REQUIRED.

 

YOU CAN ALSO MAKE THIS ENGINE WORK WITH A DRY SUMP LT4 Z06 APPLICATION BUT THE CRANKSHAFT HAS A DOUBLE KEYWAY, SO AN ATI LT5 BALANCER HUB WILL BE REQUIRED, WITH AN LT4 BLOWER BELT RING. 

 

NOTES
• Long Block Assembly does not include any electronics, no intake/supercharger, no fuel system components (No HPFP, no lines). 
• Intended as a service engine for 2019 Corvette ZR1. 
• NO CORE REQUIRED

 

TECH SPECS
Part Number: 12687020
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 (12664572)
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

Chevrolet Service Engines carry a 1 year warranty when installed into a swap vehicle. If installed into the vehicle it was designed for, they carry a 3 year warranty.