Hi all,

I'm trying to find out some more information on the roller rockers Rockcrawl used on the performance 4.9 build - the adjustable ones from Angus racing. If anyone has info, pics or part #'s, I'd greatly appreciate it !!

I'm no 4.9 expert but as I recall, they take the 3.8 roller rockers. Somebody may correct me on this

Arn

Well through some google business searching I was able to find contact for Angus racing. I would still like to hear from Rockcrawl about how he machined the rocker support ribs to hold the pedestals. Jon, you out there ??

Cheers

I talked to them about those rockers a few weeks ago. They aren't making them any more. They were for small block Fords if I recall. But be aware that there is some machine work that would need to be done to the rocker mount to make any SBF rocker work. (I went ahead and ordered a standard set of 1.7 SBF rockers from them anyway) You have to machine the rocker support for the pedestals. It also appears as though you would have to elongate the bolt hols for the rocker mount itself so it can be moved outboard about 1/8" inch as the SBF rockers are smaller than the 4.9 rockers and they won't sit on the valve stem properly. Also Jon had to make spacers for the valve covers as those rockers sat higher and wouldn't clear. Try calling Angus anyway, as at least when I talked to them they said they were no longer in production, but they did have the parts on hand to put a set together. They were about 300 bucks if I recall, which was a bit out of my budget. The ones I got were about 170, but don't have the adjustable rod seats.

Thanx for the reply - I did talk to Angus this morning. I really need to get the details of how Jon did the pedestals/ machined the rib before I can go forward.

Cheers,
Robert

Good luck reaching him. I tried to send him a message asking for some details, but never heard back from him. I dunno if he's around or what...

The pedestals have a rectangular base. You have to machine a sort of slot in the mount to accept the base and keep it aligned. He did all the machine work himself if I understood his description. But for those of us without a shop available, we need to take the mount, rockers, and heads to the machine shop so they can align the rockers to the valves, and then machine the mounts for the pedestals. Then they will elongate the mounting holes to move the mount closer to the valves for proper contact between the rocker and the valve stem.

It doesn't look good by this thread. Rick B

//www.fiero.nl/forum/Forum1/HTML/074493.html

Wow, that really sucks... Jon was a big contributor here - hope what ever is going on works out for him.

Thanx for the reply

Cheers

Are you using the steel rocker supports, or the stock aluminum support?

I'm stuck in no-man's land right now.. The long & short is I got a complete setup from Bud Adelman and the workmanship is poor so I don't want put them on the motor. I'm looking for another option - I got a set of steel supports & was thinking to duplicate Rockcrawl's setup, but I don't like the valve cover troubles. Would have any suggestions?

Cheers

I have seen rockcrawls in person and also copied his roller rockers. I also used 3800 late model series 1 roller pedistals. Both of which you can only use if you have cast steel rocker support bracket from an Allante. The machining as mentioned is required to keep the rockers from turning also the pedistals need to be shortened to the correct length. All of which IMO did not increase performance enough to justify the work, cost and also decreased reliablity. Rockcrawl had a failure, I also had some cracking develop in the rockers. Spend your efforts in Porting the heads and intake cause there is no use in opening the valves any further if you can not flow the air to them. We were both running a .5 lift which was why the mod in the first place.

Pete

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Hey Pete,

I too have the .498 lift Delta cam - I got my heads done by Bud = P&P, larger valves, Beehive springs, etc. He took forever and said they were the last set he's ever do, but in the end I'm just not happy with the support ribs = pair he sent look like I did them. I had a local machinist working on making me a better set but he too has proved to be a tool - I don't know what's with machinist and thier work ethic !!

I would be very interested to know about the rocker failures you & Rockcrawl had - I take it was the Angus rockers & the 3.8 rockers ?? What do you think contributed to them failing ?? The setup I have right now has Crane Cams roller rockers on Bud's ribs, which I'm not going to use. I'm looking for options for the rockers, either having another set of ribs made (not likely) or milling down the steel allante ribs. Now you say the rockers fail on the steel ribs makes me wonder...

Thanx for the input !!

Cheers