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Lobo'74 · 09-02-2003, 08:37 PM

The engine is pretty hot. 1979 350 Chevy V8, 4-bolt mains, with the following mods:

*Bored .030 over
*Align bored
*Parallel top of block
*New cam bearings
*New freeze plugs
*New hypereutectic pistons, flat top
*Reconditioned connecting rods
*Crankshaft main and rod journals ground .010 under
*Rotating assembly balanced
*Double roller timing chain
*Melling high volume, high pressure oil pump
*Speed Pro cam: Intake 224 deg dur, .450” lift; Exhaust 224 deg dur, .460” lift
*New hydraulic lifters and push rods
*World Industries part #012250-1 Sportsman II cylinder heads with 72cc chambers (9.5 to 1 compression), stainless steel valves 2.02 intake, 1.6 exhaust, heavy-duty valve springs, screw-in studs, guide plates
*Crane roller rocker arms (Rollers on both fulcrum and tip)
*Edelbrock # 1470 750 CFM 4-barrel carburetor
*Edelbrock performer RPM aluminum intake manifold
*HEI distributor (Late-70’s style)
*Dyna-max Headers

Thermostat is 190 degrees. Hoses are OK. The last owner has a kludged up plumbing type pipe set up to get the lower hose around the fan blades. A shroud and the correct hose should solve that, but the hose itself is fine. Good flow.

As long as the truck is moving it runs 190 degrees. Slow traffic 210. Stop and go, 230. I think the lack of a shroud causes it to run hot in traffic and when stopped. I think the V8 size radiator will be needed (about 29 inches wide) as the 6 cyl radiator (at 26 1/2 inches across) is smaller. I'm not sure if the 3 core will be sufficient or if the 4 core wound be better for cooling - then the question is , does the 4 core really clog up more or was that told to me because their shop doesn't carry the 4 core radiators?

09-02-2003, 08:37 PM	#5
Lobo'74 Registered User Join Date: Nov 2002 Location: Charlottesville, VA Posts: 404	Heating up The engine is pretty hot. 1979 350 Chevy V8, 4-bolt mains, with the following mods: Bored .030 over Align bored Parallel top of block New cam bearings New freeze plugs New hypereutectic pistons, flat top Reconditioned connecting rods Crankshaft main and rod journals ground .010 under Rotating assembly balanced Double roller timing chain Melling high volume, high pressure oil pump Speed Pro cam: Intake 224 deg dur, .450” lift; Exhaust 224 deg dur, .460” lift New hydraulic lifters and push rods World Industries part #012250-1 Sportsman II cylinder heads with 72cc chambers (9.5 to 1 compression), stainless steel valves 2.02 intake, 1.6 exhaust, heavy-duty valve springs, screw-in studs, guide plates Crane roller rocker arms (Rollers on both fulcrum and tip) Edelbrock # 1470 750 CFM 4-barrel carburetor Edelbrock performer RPM aluminum intake manifold HEI distributor (Late-70’s style) *Dyna-max Headers Thermostat is 190 degrees. Hoses are OK. The last owner has a kludged up plumbing type pipe set up to get the lower hose around the fan blades. A shroud and the correct hose should solve that, but the hose itself is fine. Good flow. As long as the truck is moving it runs 190 degrees. Slow traffic 210. Stop and go, 230. I think the lack of a shroud causes it to run hot in traffic and when stopped. I think the V8 size radiator will be needed (about 29 inches wide) as the 6 cyl radiator (at 26 1/2 inches across) is smaller. I'm not sure if the 3 core will be sufficient or if the 4 core wound be better for cooling - then the question is , does the 4 core really clog up more or was that told to me because their shop doesn't carry the 4 core radiators? __________________ "Truck" '67 small window '79 350 .030 over, LT1 "clone"