The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Whats to factory HP and TQ ratings were for a 350 in a 1974 GMC?

Chevyman69 · 01-19-2002, 12:34 PM

Net Horsepower: 160@3800rpm
net Torque" 255@2400 rpm.the brake or gross horsepower is still 245 and the torque is about 350 in gross terms, there is a lot of difference but with the factory settings on everything on the truck the net is more real world.

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69 CST 10, 402, steel crank, heavy rods, Federal Mogul Forged Pistons, 9.9:1 compression, polished ported 781 heads 2.19/1.88 manley stainless valves, Crane Powermax Hydraulic roller 288/296 and .587,.610 lift, hardened pushrods, Crane Roller Rockers, Weiand Action Plus, 750CFM Rochester QJET, MSD HEI, MSD 8MM Wires, Dynomax Ceramic coated headers, should be about 500 H.P. 700R4 2500 stall, pretty nasty shift kit, 373 Auburn Pro Series Posi, buckets/console air/tilt/tach 4wheel discs
Daily Driver: 92 Chev Reg Cab LWB Silverado 4x4, loaded, 350 Accel filter/cap/rotor/coil/MSD wires/AC Delco RapidFire plugs, Edelbrock intake and headers, 180 degree thermostat, Hypertech Thermomaster Chip, true duals 700R4 with B@M Shift Kit for now!

01-19-2002, 12:34 PM	#3
Chevyman69 Vortec 350's Suck Join Date: Nov 2000 Location: Pickardville Alberta Canada Posts: 544	Net Horsepower: 160@3800rpm net Torque" 255@2400 rpm.the brake or gross horsepower is still 245 and the torque is about 350 in gross terms, there is a lot of difference but with the factory settings on everything on the truck the net is more real world. ------------------ 69 CST 10, 402, steel crank, heavy rods, Federal Mogul Forged Pistons, 9.9:1 compression, polished ported 781 heads 2.19/1.88 manley stainless valves, Crane Powermax Hydraulic roller 288/296 and .587,.610 lift, hardened pushrods, Crane Roller Rockers, Weiand Action Plus, 750CFM Rochester QJET, MSD HEI, MSD 8MM Wires, Dynomax Ceramic coated headers, should be about 500 H.P. 700R4 2500 stall, pretty nasty shift kit, 373 Auburn Pro Series Posi, buckets/console air/tilt/tach 4wheel discs Daily Driver: 92 Chev Reg Cab LWB Silverado 4x4, loaded, 350 Accel filter/cap/rotor/coil/MSD wires/AC Delco RapidFire plugs, Edelbrock intake and headers, 180 degree thermostat, Hypertech Thermomaster Chip, true duals 700R4 with B@M Shift Kit for now! __________________ 69 Chev CST 10 reg cab lwb Daily Driver: 92 Chev Reg Cab LWB Silverado 4x4, K.I.A 7:51 AM 04/22/03 Will be resurrected