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LT-1 from a 1970 Chevrolet Camaro Z28
Years: 1970–1972
The LT-1 was the ultimate 350 cu in V8, becoming available in 1970. It used solid lifters, 11:1 compression, the '178' high-performance camshaft, and a 780 CFM Holley four-barrel carburetor on a special aluminum intake, with rams' horn exhaust manifolds in the Chevrolet Corvette, Delco transistor ignition and a low-restriction exhaust factory rated at 370 bhp in the Corvette, and 360 bhp at 6000 rpm and 380 lb-ft at 4000 in the Camaro Z28[8] (the NHRA rated it at 425 hp for classification purposes). Redline was 6500 rpm but power fell off significantly past 6200 rpm. The LT-1 was available in the Corvette, and Camaro Z28. Power was down in 1971 to dual-rated 330 bhp, 255 nethp and 360 lb-ft of torque with 9:1 compression, and again in 1972 (the last year of the LT-1, now rated using net only, rather than gross, measurement) to 255 bhp and 280 lb-ft.
The "LT1" designation was later reused on a Generation II GM MPFI "350" small block engine in late 1991, the LT1.
Years: 1970–1972
The LT-1 was the ultimate 350 cu in V8, becoming available in 1970. It used solid lifters, 11:1 compression, the '178' high-performance camshaft, and a 780 CFM Holley four-barrel carburetor on a special aluminum intake, with rams' horn exhaust manifolds in the Chevrolet Corvette, Delco transistor ignition and a low-restriction exhaust factory rated at 370 bhp in the Corvette, and 360 bhp at 6000 rpm and 380 lb-ft at 4000 in the Camaro Z28[8] (the NHRA rated it at 425 hp for classification purposes). Redline was 6500 rpm but power fell off significantly past 6200 rpm. The LT-1 was available in the Corvette, and Camaro Z28. Power was down in 1971 to dual-rated 330 bhp, 255 nethp and 360 lb-ft of torque with 9:1 compression, and again in 1972 (the last year of the LT-1, now rated using net only, rather than gross, measurement) to 255 bhp and 280 lb-ft.
The "LT1" designation was later reused on a Generation II GM MPFI "350" small block engine in late 1991, the LT1.
This is the earlier engine short block that has the forged crank and rods with Brodix aluminum heads, Norris stainless roller rockers, Edelbrock high performance hydraulic cam and intake package, 650 Holley with two Weber Powerplates, it's been blueprinted and the lifter valley ground smooth among other tweaks I don't recall.
I used to be into cars pretty heavy, had 65 GTO, 70 Road Runner, 66 Sunbeam Tiger, 63 Lotus Elite, 62 Satellite vert with a 413 and so on..
Now I get my gearhead fix from batteries, controllers and brushless motors.
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