Timing cover for retrofit roller cam - Chevelle Tech
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post #1 of 6 (permalink) Old Jun 12th, 19, 2:37 PM Thread Starter
Scott Scheffer
 
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Timing cover for retrofit roller cam

Hi all,

I'm putting a retrofit roller cam and roller lifters in a Gen 1 350 for my 67 El Camino. It looks to me like having a timing cover with a cam button adjuster would make things a hell of a lot easier. Does anyone have any opinions on the two covers that are offered by Cloyes? Are there others on the market that have that feature? And, I'm assuming you can use a dial caliper at the plug at the rear of the engine while adjusting the play through the timing cover? Am I right about that?

A separate question - has anyone had experience in reinforcing a stock timing cover to be able to hold back the cam button?

I find the whole thing about adjusting the camshaft forward and back play kind of daunting. Maybe I'm too worried about it. But if anyone has words of advice and/or encouragement, that would be great.

Thanks a lot,

Scott Scheffer
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post #2 of 6 (permalink) Old Jun 12th, 19, 4:10 PM
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Marcus
 
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Re: Timing cover for retrofit roller cam

You need a dial indicator to check the play. See picture.
Cast alu cover and nylon button from comp cam is what I have used with sucess.
With oem stamped cover alot of people use a longer bolt with a but on the rear cover on the water pump to avoid flex from the cover.



Dial indicator set up to check play

Chevelle Malibu ss 64
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post #3 of 6 (permalink) Old Jun 12th, 19, 4:13 PM
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Marcus
 
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Re: Timing cover for retrofit roller cam

If you havnt bought cam yet GOFAST Gary has a nice sticky how to use a step nose cam with retainer plate instead of button on early blocks.
https://www.chevelles.com/forums/18-...rly-block.html
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Chevelle Malibu ss 64
489 BB with parts from Lewis racing
Alumitech radiator with dual spals
Th 400 Edge 9.5" converter
57 3/4 wide 12 bolt: Eaton posi, Us gear 3.31, Toms KA 33 splines axles
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post #4 of 6 (permalink) Old Jun 12th, 19, 4:13 PM
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Mr Bill
 
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Re: Timing cover for retrofit roller cam

Scott,
Is the engine completely apart or are you doing this in the car ? If it is apart and you have not purchased a cam yet, look at Garys post at the top of this forum. It is the second sticky. I have done three of them that way now and they are the only way to go.

However . . . if you are doing it in the car or already have a cam then I have used the comp cover but to be honest with you I prefer a stock cover with the Comp nylon cam button. A little more time consuming to get it set right at first but then there is no moving parts to worry about. I have never really had a problem using a stock cover but not with any crazy valve spring pressures. Most of the thrust on the camshaft is towards the back of the block. If you are worried about it flexing just use an aluminum front cover instead. Garys method does away with all of the worrying

Bill Koustenis
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post #5 of 6 (permalink) Old Jun 12th, 19, 4:42 PM Thread Starter
Scott Scheffer
 
Join Date: Oct 2015
Location: los angeles ca
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Re: Timing cover for retrofit roller cam

Ah well now I wish I had posted earlier. GOFAST Gary's idea is very cool! If I ever do another...
But I already have a nice comp cam and I'm using Vortec heads with LS1 valve springs, so there should be good spring pressure but not too crazy. Thank you all for these replies - I think it bolstered my confidence!
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post #6 of 6 (permalink) Old Jun 13th, 19, 6:17 AM
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Re: Timing cover for retrofit roller cam

I use the nylon buttons and stock cover. Its never been a problem for me.
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