350 LO5, help me out, pic inside.
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Car: 1992 Trans/am convertible
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: 2.73 drum WS6
350 LO5, help me out, pic inside.
Here I am with another 350 question
I have the lo5, and I was wondering what kind of cam can I have in it. Here is the pic of the lifter valley and you can tell me what would work.
Thank you sooo much. Never built a motor before so I am sutmped. I am gettin a video soon of how to build a small block chevy. I am a visual learner.
Thanks again and here is the pic.
I have the lo5, and I was wondering what kind of cam can I have in it. Here is the pic of the lifter valley and you can tell me what would work.
Thank you sooo much. Never built a motor before so I am sutmped. I am gettin a video soon of how to build a small block chevy. I am a visual learner.
Thanks again and here is the pic.
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
That is a roller motor but you can't tell what cam it has in it by looking at that pic. You will have to try to decifer any stampings on the cam or get out your caliper and do some basic measuring. You can use any hydraulic roller cam provided its lift figures don't exceed the lift limits of the heads you use. You also want to choose one that is a good match for TBI and tuning in general.
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Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Non-roller engine block. The factory roller blocks have 3 bosses sticking out of the ridge in the center of the valley. They are tapped for a 5/16-20 IIRC, to hold down the lifter spyder. Your block is missing those.
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by Fast355
Non-roller engine block. The factory roller blocks have 3 bosses sticking out of the ridge in the center of the valley. They are tapped for a 5/16-20 IIRC, to hold down the lifter spyder. Your block is missing those.
Non-roller engine block. The factory roller blocks have 3 bosses sticking out of the ridge in the center of the valley. They are tapped for a 5/16-20 IIRC, to hold down the lifter spyder. Your block is missing those.
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Car: 93 GM300 platforms
Engine: LO3, LO5
Transmission: MD8 x2
I didn't think Shifty had it right because I didn't see enough material for the factory roller-lifter spider plate attaching points... but Fast gave a more precise answer first.
IF the engine is an LO5, then it's a TRUCK version of the LO5; the passenger car LO5 got roller lifters, trucks got flat tappet. So if you have an LO5 truck engine, then it has a flat tappet cam --- I used to know the specs for it but I believe they are around 195/202 deg i/e. I don't recall the lift but it's probably under 0.40" intake and slightly over 0.40" exhaust -- both as measured at the valve.
If you opt for a non-stock cam, then make sure you do as Shifty suggested --- use one that won't be too tough to re-tune the ECM.
IF the engine is an LO5, then it's a TRUCK version of the LO5; the passenger car LO5 got roller lifters, trucks got flat tappet. So if you have an LO5 truck engine, then it has a flat tappet cam --- I used to know the specs for it but I believe they are around 195/202 deg i/e. I don't recall the lift but it's probably under 0.40" intake and slightly over 0.40" exhaust -- both as measured at the valve.
If you opt for a non-stock cam, then make sure you do as Shifty suggested --- use one that won't be too tough to re-tune the ECM.
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Car: 1992 Trans/am convertible
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: 2.73 drum WS6
Who sells flat tappet cams?? anyone have any they wanna get rid of?? I am used to dealing with rollers and flat tappet is something new to me.
Thanks soo much for the help
Thanks soo much for the help
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Here are a few pics to help clear up my initial mistake. As noted there are three spider hold down bolts and not two as I previously thought.
Spider hold down bolts
The three bosses are clear here in this pic of my LO3.
Spider hold down bolts
The three bosses are clear here in this pic of my LO3.
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Car: 1992 Trans/am convertible
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: 2.73 drum WS6
I found a cam but it says it for an 305 HO. I called crane cams and they told me that this is their performance one for the LO5 motor out of a truck, 1988 year.
What do you think.
They said that this one would work with my computer.
http://www.cranecams.com/?show=brows...22&lvl=2&prt=5
What do you think.
They said that this one would work with my computer.
http://www.cranecams.com/?show=brows...22&lvl=2&prt=5
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by xlwhellraiser
They said that this one would work with my computer.
http://www.cranecams.com/?show=brows...22&lvl=2&prt=5
They said that this one would work with my computer.
http://www.cranecams.com/?show=brows...22&lvl=2&prt=5
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