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Topic: Replacing Cam?

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Replacing Cam? (1/4)
 8/27/20 9:19am
sjh0006
Former Member

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Helen, GA - USA

Vette(s):
'78 Silver Anniversary


Joined: 7/16/2016
Posts: 11

Took my small block 78 Silver Anniversary to a new mechanic because I had a valve that was sticking.  It was cracked as was two springs.  Replaced all springs and valves.  Told a couple lifters were cracked (bad) as well.  "New" mechanic said it is a good idea that I replace the cam with lifters as well.  

A couple questions:  

1. is that necessary or a good idea?  I've read where it will/can increase HP.

2. Cost to replace the valves and springs and necessary head work was $1100.00, which I thought was a decent price with all parts and labor.  High?  Low? Average?

3.  Did my research on new cam and lifters and saw a couple places, who specialize in C3s, list at about $350.00.  So that appears OK.  But total costs for everything is about $2200.  That's $750 in labor.  Seems a bit steep.  I live in north Georgia where my usual Vette mechanic charges $75/hr.  Should I be concerned?

PM me at sjh0006@windstream.net

Thank you for any input.      



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Re: Replacing Cam? (2/4)
 8/27/20 9:29pm
F4Gary
Standard Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.


Joined: 8/26/2006
Posts: 1079

You think he can do it in less than 10 hours?  Seems reasonable to me.

I'd do some research and find a good modern designed cam that will get a little more low end power.



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Re: Replacing Cam? (3/4)
 8/29/20 9:45am
BillHanna
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Cana, VA - USA

Vette(s):
1975 Stingray 71 350 engine Flat top pistons Sniper fuel injection Hyperspark ignition Vintage Air air conditioning Borgeson power steering box


Joined: 7/3/2016
Posts: 257

When I rebuild the 350 in my '75 last year, I put in a Compcams 300+ camshaft and am very happy with it.

If I did it again, I think I would have gone with a roller cam because of the issue of modern oils not having enough phosphorus and zinc to prevent excessive wear in flat-tappet camshafts.



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Re: Replacing Cam? (4/4)
 8/29/20 9:53pm
F4Gary
Standard Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.


Joined: 8/26/2006
Posts: 1079

I would definitely go with a roller cam.



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