Port City Engines
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Holden 355 Blower engine.

5.0L OEM block, Partial Grout Filled, Bored & Torque plate honed, Zero decked & line honed, oil system modifications. Scat steel 4000 series crankshaft, Linished & Balanced, Scat H-Beam rods, Balanced, JE Forged Dish Top pistons, Crow cams, 252/260 @.050″ .580″/.600″ 114LSA custom solid flat tappet camshaft, Blower with 10 psi boost with FiTech Dual Quad EFI system.

633 hp @ 7100 rpm – 520.8 ft/lb @ 5000 rpm

Holden 355 HP1 Performer engine

OEM block, bored & Torque plate honed, Zero decked, line honed and clearanced for stroker. Scat crankshaft, Scat 5.7″ rods, Speed Pro pistons, 204/214, .462″/.486″, 108LSA hydraulic flat tappet camshaft, Edelbrock performer manifold and Brawler 67254 600 CFM Carby.

324 hp @ 5200 rpm – 391 ft/lb @ 3000 rpm

Holden 253 HP1 performer engine.

OEM block, Bored & Torque plate honed, Zero decked & line honed. Ground, Linished & Balanced standard 308 crankshaft, Resized & Balanced rods with ARP Rod bolts, Mahle Dome Top pistons, Crow 5666-8, 204/214 @.050″ .462″/.486″ 108LSA hydraulic flat tappet camshaft, Edelbrock performer manifold and Brawler 67254 600 CFM Carby.

270.5 hp @ 5600 rpm – 271 ft/lb @ 5100 rpm

Ford 347W HP1 stroker engine.

OEM block, bored & Torque plate honed, Zero decked, line honed and clearanced for stroker. Scat crankshaft, Scat 5.4″ rods, Speed Pro pistons, 230/230, .512″/.512″, 110LSA hydraulic flat tappet camshaft, Edelbrock RPM manifold and Brawler 67212 650 CFM Carby.

422 hp @ 6000 rpm – 415 ft/lb @ 4600 rpm

Holden 304 HP1 performer engine.

OEM block, Bored & Torque plate honed, Zero decked & line honed. Ground, Linished & Balanced standard 304/5.0L crankshaft, Resized & Balanced rods with ARP Rod bolts, Austral Flat Top pistons, Crow 41330, 220/227 @.050″ .541″/.551″ 110LSA hydraulic roller camshaft, Edelbrock RPM Air-Gap manifold and Brawler 67256 650 CFM Carby.

379.8 hp @ 5900 rpm – 356.9 ft/lb @ 4200 rpm

Holden 253 HP1 performer engine.

OEM block, Bored & Torque plate honed, Zero decked & line honed. Ground, Linished & Balanced standard 308 crankshaft, Resized & Balanced rods with ARP Rod bolts, Hypertec Flat Top pistons, Crow 5603, 214/214 @.050″ .486″/.486″ 110LSA hydraulic flat tappet camshaft, Edelbrock performer manifold and Brawler 67256 670 CFM Carby.

267 hp @ 5600 rpm – 267.8 ft/lb @ 4800 rpm

Holden 355 stroker engine.

OEM block, bored & Torque plate honed, Zero decked, line honed and clearanced for stroker. Scat crankshaft, Scat 5.7″ rods, Speed Pro pistons, 210/210, .459″/.459″, 114LSA hydraulic flat tappet camshaft, Edelbrock RPM Air-Gap manifold and Brawler 67212 650 CFM Carby.

348 hp @ 5250 rpm – 392 ft/lb @ 3950 rpm

Holden 304 HP1 performer engine.

OEM block, bored & Torque plate honed, Zero decked & line honed. Linished & Balanced standard crankshaft, Resized & Balanced rods, Austral Flat Top pistons, Crow 4503, 227/220 @.050″ .486″/.486″ 113LSA hydraulic flat tappet camshaft. 

326 hp @ 5500 rpm – 340.8 ft/lb @ 4500 rpm

Kevin Rowland
Holden 355 stroker EFI engine.

OEM block, bored & Torque plate honed, Zero decked, line honed and clearanced for stroker. Scat crankshaft, Scat 6.0″ rods, SRP pistons, Crow cams 238-244 hydraulic roller camshaft, Edelbrock RPM Air-Gap manifold and 4150 style throttle body. Tuned using VR-VS auto ECU (424 ECU)

453 hp @ 6100 rpm – 443.4 ft/lb @ 4700 rpm

David Kemp
Holden 253 HP1 performer engine.

Standard block bored & Torque plate honed, Zero decked, line honed. Standard crankshaft, reground and balanced. Standard rods, resized with ARP bolts. Crow cams 5689 hydraulic flat tappet camshaft. Heads pocket ported with Edelbrock performer manifold

264hp @ 6100 rpm – 249ft/lb @ 4750 rpm

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