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["built ls engine","built ls3","complete ls","complete ls3","ls3 engine","ls3 long block","ls3 supercharged","mast ls3 engine","supercharged engine","supercharged ls","turn-key ls3","turnkey ls3"]
Type: LS3 6.8L Displacement: 416 Cubic Inches Compression Ratio: 9.5:1 Bore x Stroke: 4.065 x 4.000 Rev Limit: 7000 RPM Crank: Callies Forged Rods: Callies H-Beam Pistons: Mahle Motorsports Cam: Mast Custom 3-Bolt Core Cam Intake: Not Included Valve Springs: PAC Racing Dual Springs
*All hp numbers will be within 2% of the advertised number.
Mast Motorsports Handbuilt LS engines feature the best components and are assembled by professional machinist. All handbuilt engines feature ARP Main Studs, ARP Head Bolts and a balanced and blueprinted block.
The 800 Performance FI Long Block’s heart and soul is the new 4.065 aluminum block. It has a Mast Motorsports engineered camshaft that is custom ground on a Mast Motorsports billet cam core. The 416 foundation is a honed and decked LS3 aluminum block with a 4.000” forged Callies rotating assembly with Mahle pistons that is topped off with Mast Black Label Custom Cast cylinder heads. ARP fasteners are used throughout and Mast pushrods ride on LS7 hydraulic roller lifters. The 800 Performance FI Long Block is the first release of a diverse line of Mast Motorsports hand built LS3 based long blocks that are designed for the Hot Rod/Muscle Car market. The 800 Performance FI Long Block supports up to 800 horsepower and is competitively priced for such a powerful complete long block.
