[mobiledab]

All work done professionally by Lazzaro Performance in Ontario, NY.

Details from engine block:

GM Casting number: 3994258
Conveyor: 2
Mold: 17
Date: D201 (April 20, 1971)

Bored and align-honed 0.040" over. Crankshaft mains align honed and crankshaft turned and polished 0.020" under. Block deck machined to zero clearance and internally balanced with new flat-top Silvolite 6-9597 +0.040 aluminum pistons, as well as new rings and wrist pins. Resized and shot peened OEM connecting rods. ARP hardware for main caps and connecting rods. ARP stud kit for cylinder head. Cylinder head mating surfaces milled. Valves resized to 1.94" intake and 1.60" exhaust. New valve seats, guides and seals. All new Milodon Megaflow Competition stainless steel racing valves. Intake ports machined and T6G2 high-flow "lumps" installed. Head milled to accommodate push rod guide plates, threaded ARP 7/16" rocker studs and enlarged valve spring seating surfaces. Harland Sharp aluminum 1.75:1 ratio full roller, 7/16"-stud, custom machined with extra larger retainers; larger push rod angles; larger 0.430” wide roller tips installed; and rockers 1 and 12 radiused to facilitate proper valve cover fit. All new valve springs, caps and locks. Howard Cams CL-150892-08 mechanical flat tappet camshaft, 265/265 intake/exhaust duration (gross), 230/230 intake/exhaust duration (@ 0.050"), 0.508"/0.508" intake/exhaust valve lift, 108 lobe separation, 104 intake C/L, running (hot) clearance 0.022"/0.022" intake/exhaust valve lash, and 1,600-5,400 RPM range. Howards Cams 91115-12 solid lifters. GMB North America 130-2986 water pump. PEC 229.1002 Billet Steel SFI, 2-pc RMS, 11”, 168-tooth flywheel. Fel-Pro Professional gaskets throughout. Powder coated OEM valve lifter covers and oil pan installed. Fenton-style cast headers and water pump pulleys from 12Bolt Tom (uninstalled). Does not include valve cover, starter, distributor, intake manifold, or fuel system components. This was to be paired with new AGE M-23 4-speed and 2.98 first gear mated to 1987 C4 Corvette IRS with 3.09 posi-traction. Over $6,800.00 invested in engine between new components, machining, and labor. Asking $5,975.00 or best offer. Please, no ridiculous offers or questions about how to build your own. The price is more than fair, and I'm not a design consulting service. Do your homework. Shipping is at buyers cost and labor. All sales are final--no refunds for any reason.