1978 Chevrolet Corvette 1978 Silver Anniversary
1978 Silver Anniversary Chevrolet Corvette.Almost 200 photos: corvette dot grohn dot usThis example of the 1978 Silver Anniversary Corvette received a mechanical overhaul in 2010, less than 5000 miles ago. Actual miles on this car are unknown, but certainly not as low as the odometer shows. The circumstance of the odometer change is not known as that happened before acquisition of the car as a mechanical rebuild project. The original power plant was cleaned, machined, cylinders bored .30 over, stock crank reground, and stock rods reconditioned. New parts used in the build include RHS Pro Torker heads, Comp Cams Xtreme Energy cam, and Edelbrock Performer intake & carb. While the car hasnâ€™t been on a dyno, the combination of parts should yield 350HP. By changing the carb for one with higher flow, this setup will yield 500HP, but all that does is burn up tires. As it is now, the car has good hard shifts, can chirp the tires on the 1-2 shift, and is ridiculous fun to drive. New parts installed during the rebuild in 2010:Speed Pro Pistons & Rings, p/n H345NCPARP Main Stud Kit SBC 2-bolt, p/n 134-5401ARP High-Performance Series Flexplate Bolt Kit, p/n 100-2901ARP High-Performance Series Wave-Loc Connecting Rod Bolts, 8740 Chromoly Steel, p/n 134-6403ARP Engine Bolt Kit Black Oxide Chromoly SBC 12-Point, p/n 534-9701Comp Cams Magnum Double Roller Timing Set SBC, p/n 2100Fel-Pro Full Gasket Set, p/n 2802Comp Cams Xtreme Energy Camshaft Grind CS XE268H-10, Hydraulic Flat Tappet, Advertised Duration 268/280, Lift .477/.480, p/n 12-242-2, Grind CS XE268H-10ARP Head Bolt Kit, SBCComp Cams Magnum Pushrods, SBC 5/16, Chromoly, Heat Treated, 7.800in, p/n 7372-16Scat Enterprises Street Performance Damper, p/n D-80002Proform GM Licensed Diecast Aluminum Chevrolet Valve Covers, p/n 141-130Proform Air breather cap, p/n 141-616Summit Racing PCV Valve, p/n G3411Proform Push-in Oil Filler Cap, p/n 141-630Summit Racing Engine Oil Dipstick, SBC, p/n G3865Racing Head Service Pro Torker Cylinder Head Assemblies, Cast Iron, 64CC Chamber, 170CC Intake Runner, SBC, p/n 12410-01Ultra Rockers SBC 3/8 1.5, p/n 024919001-16Edelbrock Performer Carburetor 600 CFM with Electric Choke, p/n 1406Edelbrock Performer Intake Manifold, SBC, p/n 2101Flowtech Long Tube Headers with Black Paint, p/n 43001FLTDesign Engineering Exhaust Wrap Kit, p/n 10110Pypes Performance Exhaust, 2.5â€³ Crossmember Back S-Pipe System with Street Pro Mufflers, p/n SCC910EAccell Super HEI Ignition Coil, p/n 140003Bosch Ultra-Premium Spark Plug Wire SetB&M Transpack TH350 68-81, p/n 30228Summit Racing Chrome Transmission Dipstick, TH350, p/n G3880Dewitts High Performance Aluminum RadiatorAll the normal rebuild parts including freeze plugs, cam bearings and main bearings.In 2017 the Climate Control System was overhauled and charged with a full charge of R-12. Three years later, the system still blows cold without any further Freon charge. The power steering pump and valve were also rebuilt. Parts installed:A/C Compressor and Clutch, ACDelco GM OE 15-20206, p/n 16100351-DCB-2020-1520206Receiver/DryerA/C Evaporator CoreOrifice TubeTemperature Sending UnitHot Water Shut-Off Vacuum ValvePower Steering valve rebuild kitPower steering hosesAll engine V-beltsHEI replacement module and harness, p/n 91012338In 2019/2020, vacuum parts related to the headlamps were replaced, and the vacuum actuators rebuilt. Due to a leak in one front brake caliper, both front brake calipers were rebuilt/upgraded and loaded with new pads. The OE style caliper pistons have a tendency to leak on vehicles that are not driven very much, and the upgrade done includes new caliper pistons that use o-rings (DOT5 and higher fluid must not be used). Parts replaced include:Headlight Vacuum Actuator Rebuild Kit Seal/BootHeadlight Vacuum Door Open Override Switch underdash2-Port Vacuum Headlamp SwitchCorvette Front Brake Caliper O-Ring Seal and Piston Rebuild Upgrade KitFront Brake Pads, p/n PFB PF727MAlong the way, other parts were replaced, including:Dash clock replaced with Solid State replacement from Instrument Services Inc.Windshield Wiper motorThis car has been garaged and kept under a car cover (cover included, though it is end-of-life). Also included are repair manuals, an electrical schematic poster, and other documentation useful in repair and maintenance.Car is in Oregon, and has a clear South Carolina title.