Overview
LS Classic Series Tri-Power Crate Engines
LS Classic Series Tri-Power crate engines come with the complete line of LS Classic Series components pre-installed and ready to drop-in your classic ride. These crate engines start with a brand new, GM 495 hp “Hot Cam” LS3 right out of the box. They are then painted orange or left natural, and are assembled with an LS Classic Series vintage inspired Tri-Power intake kit with dual throttle bodies, chrome air cleaner, billet aluminum valley pan, and big block Chevy-style valve covers of your choice. These packages include a Holley Dominator engine management system and wiring harness with a GM electronic transmission controller. Once completely assembled, the Holley ECU is loaded with a start-up tune and the engines are run to check for leaks and oil pressure. Pricing varies depending on the engine’s options.
Specifications include:
* Compression ratio of 10.7:1
* Recommended fuel is 92 octane
* Cast-aluminum block with 6-bolt cross-bolted main caps
* Nodular iron crankshaft
* Powdered metal connecting rods
* Hypereutectic aluminum pistons
* Steel hydraulic roller tappet camshaft
* Valve lift of 0.525 in. for intake and exhaust
* Duration at 0.050 in. is 219 degrees intake and 228 degrees exhaust
* Lobe separation angle is 112 degrees
* Combustion chamber volume is 68cc
* Valve diameter is 2.165 in. for the intake and 1.590 in. for exhaust
* Cast roller trunnion rocker arms with a 1.7:1 ratio
* Internally balanced
* 58x Gen IV reluctor wheel
* Maximum recommended rpm is 6,600
* Recommended torque converter stall is 2,400-2,800
Engines include:
* Fully assembled long block
* Holley Dominator engine management system with O2 sensor and transmission control
* Tri-Power intake system with chrome air cleaner, dual GM throttle bodies and injectors
* Oil pump, pick-up and Camaro style oil pan
* Billet aluminum valley plate with integral breather
* Intake manifold, fuel injectors and throttle body
* Harmonic balancer
* Front timing cover
* Oil filter and passenger side oil dipstick and tube
* High-performance rear dump exhaust manifolds
* 14.000 in. automatic transmission flexplate
