years. Now, GM Performance Parts has a 454 cubic inch crate engine that is big on ... yard) Gen VI four-bolt big-block. The 454 HO is stuffed with a forged steel crank ... in at 425 with 500 lb.-ft. of big-block torque. The 454 HO is delivered to you ... Small money Pump-gas friendly 12568774 454 HO NOTE: Distributor with melonized ... a twelve-month, 12,000-mile warranty. W 454 HO TECH SPECS: Part Number: 12568774 ... Engine type: Chevy big-block V-8 Displacement (cu in): 454 ... 1.88 exhaust Compression ratio: 8.75:1 Rocker arms (P/N 12523976): Stamped steel ... Rocker arm ratio: 1.7:1 Water pump (P/N ...
big-block head 500 lb.-ft. of big-block torque Forged steel crank CRATE ENGINES BIG- ... 12,000-mile warranty. W ZZ454/440 TECH SPECS: Part Number: 12498777 Engine type: ... Chevy big-block V-8 Displacement (cu in): ... 454 Bore x stroke (in): 4.25 x 4.00 Block ... 1.88 exhaust Compression ratio: 9.6:1 Rocker arms (P/N 12368082): Stamped steel ... Rocker arm ratio: 1.7:1 Water pump (P/N ... GM Performance Parts took the venerable 454 HO, swapped the cast iron production ... horse improvement over the iron-headed 454 HO. These oval-port aluminum heads use ... to add to the efficiency of the 454" big-block. The bottom end includes a ... roller camshaft with a .510/.540" lift specs delivers a big-block loping idle as ...