HTR Performance Trucks

Sneak Peak!!!!! HTR-SS454! Back in 1990 GM released the big block SS454 pickup…..today we bring back the SS454 in the modern day!

Our new model features the powerful and compact LSX454 engine from GM Performance Parts with some upgrades from Redline Motorsports…..

LSX 454  SpecificationsEngine Type LSX Series Gen-IV small-block V-8

Displacement (cu in/L) 454/7.4

Bore x Stroke (in/mm) 4.185 x 4.125/164 x 162

Block LSX cast iron with six-bolt, cross-bolted main caps

Crankshaft 4340 forged steel

Connecting Rods 4340 forged steel

Pistons Forged aluminum

Camshaft Type Hydraulic roller

Valve Lift (in) 0.610/0.610

Duration (deg @ 0.050 in) 228/232

Cylinder Heads LSX 454 rectangular port LS7

Chamber Size 70 cc

Valve Size (in) 2.20 Titanium /1.61 Sodium Filled

Compression Ratio 11:1

Rocker Arms Investment cast, roller trunnion

Rocker Arm Ratio 1.8:1

Recommended Fuel 92 octane

Reluctor Wheel 58X

Balanced Internal

Transmission 4L60E with beefed up internals

Exhaust System Tubular Stainless Steel system with MBRP Exhaust

Suspension System Stock with 4/7 drop springs