350 truck motor vs 350 car motor
#1
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Car: 84 Z28
Engine: GMPP 350 HO
Transmission: 700R4 + Shift Kit
Axle/Gears: Auburn Posi; Richmond 3:73 Gears
350 truck motor vs 350 car motor
ok whats the difference between a 350 truck motor and a 350 car motor? is there anything different internally? like the crank rods pistons? cause i can get a 350 truck motor for about 400 complete. and i wanted to top it off with the holley systemax II kit... what do yall think?
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Car: Corvette
Engine: 5.7
Transmission: 700R4
truck is more likely to have 4 bolt mains i beleive.
the cam would be different. setup for more low end than high.
but the 350 block is a 350 block
the cam would be different. setup for more low end than high.
but the 350 block is a 350 block
#3
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Another difference is that cars got roller cams sooner than trucks, so if you get an early 90s or late 80s truck block, it may have a flat tappet cam BUT may also have provisions to be drilled to accept a factory roller system. Make sure you know what you're getting.
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ok truck motors got roller cams in 1987, and as for four bolt mains, most trucks 3/4 ton or larger had four bolt mains, but all after 1987(smallblock anyway) had roller cams
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Car: yy wife, crazy.
Engine: 350, Vortecs, 650DP
Transmission: TH-350
Axle/Gears: 8.5", 3.42
Originally posted by DukeofBird
ok truck motors got roller cams in 1987, and as for four bolt mains, most trucks 3/4 ton or larger had four bolt mains, but all after 1987(smallblock anyway) had roller cams
ok truck motors got roller cams in 1987, and as for four bolt mains, most trucks 3/4 ton or larger had four bolt mains, but all after 1987(smallblock anyway) had roller cams
I bought a 350 4bolt main out of a 90 GMC 3/4 ton and guess what, it has no roller cam. And I know this to be the original engine 'cause I bought the engine from a roofing company. They've had the truck since new and their mechanic has been working there longer than the truck has.
This block does have all the provisions for a roller cam, but did not come with a roller cam.
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Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
I got the GM Goowrench motor 350 which is basically a truck replacement motor. The cam in it is horrible only power to like 3500 rpms.
#7
Originally posted by Mark A Shields
I got the GM Goowrench motor 350 which is basically a truck replacement motor. The cam in it is horrible only power to like 3500 rpms.
I got the GM Goowrench motor 350 which is basically a truck replacement motor. The cam in it is horrible only power to like 3500 rpms.
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#9
V8 truck engines did not get a hydraulic roller until 96. All V8 TBI trucks had flat tappet cams. The blocks have provision for a factory hydraulic roller set up. Some of the earlier blocks are not threaded where the lifter guide retainer mounts but the bosses are there.
#10
Just today I replaced the intake gasket on a 89 305 tbi truck and the block does not have provision for a factory hydraulic roller cam. I have yet to see a 90-up V8 tbi truck motor that will not accept a factory hydraulic roller.
Sorry about the error in the above post.
Sorry about the error in the above post.
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Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
Originally posted by Morley
I got the same engine with the intent to change the heads and cam anyway. I put in a Summit flat tappet cam and TFS heads and the engine runs beautifully.
I got the same engine with the intent to change the heads and cam anyway. I put in a Summit flat tappet cam and TFS heads and the engine runs beautifully.
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