- 1973 Chevrolet 2-Bolt ‘Hi Perf Pass’ Casting No 3999289 with 4.310” Bores (Stock 4.250” +0.060”). ARP 8740 Studs/Nuts in the Mains. Aux cooling passages machined to head faces.
- Cylinder bases clearanced as required for the long stroke.
- World Products “Merlin” Cast Iron Square Port heads, Part No 30620, Casting No 1-043C. 119cc Chambers. 320cc Intake Ports and +.600” Raised Exhaust Ports.
- 2.300”/1.880” Manley “Race Master” Stainless Valves. CompCams Dual Valve Springs. Comp Cams ‘Pro Magnum’ Stainless 1.7:1 Roller Rockers and Polylocks. ARP 8740 Bolts and rocker studs.
- Scat “9000” Pro-Comp Lightweight Crankshaft 4.250” Stroke, Size STD/STD. Part No 9-454-4250-6385R
- Scat Pro Series I-Beam Forged 4340 Con Rods, 6.385” Length, 7/16 ARP Cap Screws, Bronze Bushed for Floating pins. Secured with spirolox.
- Keith Black ‘Hypereutectic’ +17cc Solid Dome Pistons, 1.270” CompHeight. 1/16”, 1/16”, 3/16” Rings, ‘Moly’ Top Ring. File fitted as required. 10.0:1 Comp Ratio
- Melling 77HV High Volume oil pump with Welded pickup, fixed with ARP 8740 Stud/Nut
- CompCams XM296HR-12 Hydraulic Roller Camshaft. Adv Dur 296/302, 0.566”/0.566” Lift. CompCams Hyd Roller Link Bar Lifters.
- CompCams Hi-Energy ⅜” Push Rods
- CompCams ‘High-Tech’ Double Roller Race Timing Set with adj +/- 4 deg billet crank gear with rear Torrington bearing and cam button.
- Dayco Powerbond ST Performance Front crank Damper with etched timing marks and PRW SFI approved flex plate both fixed with ARP 8740 Bolts.
- MSD ‘Pro Billet’ Distributor
- MSD Digital 6a Ignition Box, with full loom.
- MSD ‘Street Fire’ HT Lead set
- Summit Racing Aluminium Timing cover
- Clevite P Series Mains and Rod bearings
- King Cam Bearings
- Melling Brass freeze/core plugs and all new screwed plugs
- March Aluminium Pulleys and billet accessory brackets
- Edelbrock high capacity Water Pump
- Powermaster Ultra Torque Mini Starter
- Powermaster Chrome alternator
- Chrome GM style power steering pump
Block decked, line honed and cylinders power honed to size and hot tanked by OCS
All work carried out by Steve Kenney at Classic Powertrain using best engineering practices and heads and short block were blueprinted to published specs.
Full build sheet supplied
Digital photo album from initial disassembly through to finished engine supplied
£9795.00 ONO