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Does it stays in place well (the sprocket)? I mean - no offsets for cam bolt holes and std diameter bolts..
The sprocket is located by the bushing. The bolts lock it in position. No problems.

If you are still worried, upgrade the bolts to 12.9 grade, and use red loctite.
 

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Über Genius
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Where can I get these bushings?
I looked on Ebay and found nothing. What are they actually called?

 

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Über Genius
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Über Genius
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Interesting read..

For those of you who use the cam bushings, does it not become a little cumbersome if you're trying out different cam timings at the track and you've got a handful of little bushes that you have to swop out all the time?

What I did was turn the dowel pin into a vernier adjuster.. I machined a new pin with an eccentric lobe and a grooved head which works nicely with a flat screw driver, slotted the dowel hole in the sprocket outward (same width as the eccentric lobe diameter) and slotted the 3 fastening holes radially (not too much), so all you need to do is loosen the three sprocket fasteners slightly, turn your dowel pin and fasten up tightly again..

only disadvantage is that you don't have that positive dowel position retension, you're relying on the fasteners to keep the timing on the mark, but it's never slipped or let me down before..



 

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This means,no disassembling,no eccenter change? Awesome! But that one way tension-maybe the Chevy sprocket plate could be useful.
 

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This means,no disassembling,no eccenter change? Awesome! But that one way tension-maybe the Chevy sprocket plate could be useful.

correct :cool:

I'll concede it's a bit dangerous if the securing bolts aren't retightened properly, but shouldn't cause problems if the slots are short enough.. For the more conservative guys, this sprocket can be used to finetune the timing on a dyno or at the track, and then changing the sprocket ONCE with a cam bush one once the correct timing is determined..
 

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In 1st picture,that is like a plate in which eccenter thightly goes in?
It serves two purposes: it spreads the pressure from the three fasteners over a larger area so the frictional area is alot greater, and it also supports the eccentric dowel and keeps it from falling out.
 

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Steven
How many degrees can you advance the cam?
Here in the states we slice the head down..so very little retard is needed.
 

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Steven
How many degrees can you advance the cam?
Here in the states we slice the head down..so very little retard is needed.
Hi wrench, yeah I also like a few degrees advanced timing..

It all depends on the size of the eccentric lobe on the dowel pin.. the full range (full retard - full advance) is probably in the vicinity of 6-8deg on mine.. that means depending how you slot the eccentric gate in the sprocket, you could have roughly 4deg either side of TDC, or the full 8 to advance or retard.. mine is cut to favour advanced timing..

You could bring the cutter in exactly on the centerpoint of the dowel hole, that would give you even range in both directions, or you could come in so all the material is removed to the right/left of the hole and the original positioning is kept on the opposite side, or a blend of the two.. Just gotta keep a clear head about it, if you want to slot for full advance, you need to remove all the material towards retard direction..

Errr.. It's a bit difficult to explain, if that sounded like gibberish, here's a rough visual:

 
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Kent Vernier Cam Sprocket

Ok, I have done a ton of reading, to modify a stock cam gear will work very nicely, but I don't have a drill press ( Bang head) Has anyone found a source for the Kent Vernier cam sprocket in the US and a $$$ amount. I purchased P.J.'s 2.0 head, that was crossed milled and need to do 4.5 * of adjustment. If someone has a cam sprocket already drilled out, please pm me. Thanks Brad
 

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Living in the past
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Modified Cam Sproket

Ok, I have done a ton of reading, to modify a stock cam gear will work very nicely, but I don't have a drill press ( Bang head) Has anyone found a source for the Kent Vernier cam sprocket in the US and a $$$ amount. I purchased P.J.'s 2.0 head, that was crossed milled and need to do 4.5 * of adjustment. If someone has a cam sprocket already drilled out, please pm me. Thanks Brad
I bet RallyBob has got a drill press:haha:and could be talked into making you one to use the offset small block Chevrolet degree bushings. I also bet that that route will be a WHOLE less expensive than buying a Vernier sproket:yup: Unless you are racing your car and doing a LOT of cam timing changes the modified stock sproket will do just fine.
 

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Opeler
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Has anyone found a source for the Kent Vernier cam sprocket in the US and a $$$ amount.

This a copy of Kent's email going back 2 years ago (the price might have changed).

Dear Sir,
Thank you for your recent E-mail,yes we can offer this product, the part number is S14 and the price is £90.00 GBP plus shipping at £25.00 GBP
We accept Master/Visa cards
Best regards,
Del Johnson,
Kent Performance Camshafts Ltd.
Units 1-4 Military Rd,
Shorncliffe Ind Est.
Folkestone.
Kent.
England.
CT20 3UJ
Tel: 00 44 (0)1303 248666.
Fax: 00 44 (0)1303 252508.

Kent Cams - Kent Cams Europes Leading Performance Camshaft Specialist
 
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