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Old 04-05-2019, 09:11 AM
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babywag babywag is offline
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Quote:
Originally Posted by jcisworthy
I adapt LS mini shaft rockers to AMC bridge heads. They have a 1.7 rocker ratio

Any more info on this? Be interested in seeing this.
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'88 GW (aka Babywag) and '90 GW (aka JUNKbucket) both fuel injected
1994 Caprice wagon
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Old 04-05-2019, 10:14 AM
jcisworthy jcisworthy is offline
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Not right now.

Takes some modification to the LS shaft stand, additional clearance on the pushrod slots and pushrods but nothing major.
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Old 04-05-2019, 04:58 PM
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babywag babywag is offline
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Quote:
Originally Posted by jcisworthy
Not right now.

Takes some modification to the LS shaft stand, additional clearance on the pushrod slots and pushrods but nothing major.

Found your thread on AMC forum...looks like stockers are an option as well.
Who knew!
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'88 GW (aka Babywag) and '90 GW (aka JUNKbucket) both fuel injected
1994 Caprice wagon
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Old 04-06-2019, 03:54 AM
jcisworthy jcisworthy is offline
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I have a 401 engine in Australia with factory LS rockers, stands, and Comp Cams trunion upgrade.

That setup is not adjustable, similar to the factory bridge rockers. That engine made 531 hp and it in a left hand drive, very nice, 68 or 69 Javelin.
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Old 04-06-2019, 06:59 AM
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babywag babywag is offline
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I moved these to a new thread. Pretty cool that you found this.

On a stock 360 the LS rockers would give ~.0266 additional lift.
A poor man's cam swap kinda.
Local yard charges 2.30/ea for rocker arms so ~$40 set.
But I have seen stock sets for sale too for cheap on CL.
Some new pushrods obviously needed as well.

Would a stock or mild cam like "RV" cam need the pushrod holes slotted?
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'88 GW (aka Babywag) and '90 GW (aka JUNKbucket) both fuel injected
1994 Caprice wagon
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Old 04-06-2019, 12:16 PM
jcisworthy jcisworthy is offline
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I do not remember having to slot the pushrod holes with the stock LS rocker setup but it was about five years ago when I built that engine

Trunion upgrade is not needed to about .600 lift with the factory LS rocker as well.

Swap out the 8mm bolts with 5/16 cap screws, cut the LS stand in four sections and mount one pair per intake/exhaust. I think the factory LS may even work with a stock length pushrod. Geometry was pretty close as a bolt on if I remember correctly. I do not remember having to shim the rocker stands but again, I can be wrong, it all has to be checked as well as preload on the lifers.

The mini shafts I use now are / seem like, a T&D copy and they require additional clearance and pushrod length. They have a different installed height than the factory setup and they are adjustable.
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