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Old 04-20-2010, 11:43 PM
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Cam button question

I have a 95 TBI 350 block that is basically being retro'd back to a gen I setup. I got the motor for free stripped... Does that style motor have a cam plate or a cam button or does it just have the timing set bolted straight to it??? I'm really confused about this and don't want to have catastrophic problems when starting the engine. Thanks!

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Old 04-21-2010, 02:00 AM
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If your using a flat tappet cam it doesn`t require a cam button or retainer plate. If the block accepts both a roller and flat tappet cam as some blocks did, then it will have the provision for the retainer plate behind the cam timing gear sprocket, the block will have 2 holes at the 3 and 9 o`clock positions at the face of the cam bore. Retainer plates are only used with OEM roller cams and aftermarket OEM replacement roller cams.
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Old 04-21-2010, 02:24 AM
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Ok... so roller yes, flat tappet no. I do have a flat tappet cam so I'm good either way. Because it has taken me nearly 5 years now to get enough enthusiasm back to really want to finish this motor. I have had the bottom end together for a little while and cannot remember if it had one, if I installed it if it was supposed to have one... If I can be a bigger pain in the butt, if the plate was on there, is there a spacer or something that goes in between the sprocket and the plate or does the sprocket just go right on over the plate and then bolt to the cam? I'm just curious of the little details because I think I might have had one and installed but it's killing me that I can't remember.. UGH! It's makes this worse I'm super excited about this car/engine and I have had to re-research why I did things the way I did. I would def. not recommend this way of building an engine to ANYONE!
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Old 04-21-2010, 03:22 AM
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Cam - Retainer - Cam Sprocket.
If it came with a roller cam you should still have the roller lifters, easy to tell since they have wheels on the bottom unless they weren`t included. If it accepts a roller cam it will also have in the very center of the lifter valley 3 provisions where the roller cam spider bolts on, which is just a sheet metal device with legs that looks kinda like a spider. Plus OEM roller engines have the roller lifter link bars, also called "dog bones", they are used to hold roller lifters in one position so they don`t rotate. What is the casting number of the block? This thread here shows the dog bones and the spider:
Used roller lifter guides and spider
Lastly, if you bought a roller cam you should remember it by it`s price, as a new performance cam from comp, crane, Isky for a OEM roller block costs around $250 and higher. Flat tappet cams can be had for as low as $70 and up to $150.

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Old 04-21-2010, 04:03 AM
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ok, ya... I know what I'm putting in it but I don't quite remember what came out of it if you know what I mean. Haha. It does not have the bolts in the valley for the roller lifter setup so I should be golden. I don't have the block casting number near by but I can get it. I really appreciate this! This has really put me at ease... Thank you!
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