[Fot] Which Roller Rockers for racing TR4

[Barry Munson]

Hi Steve – Go to Goodparts (Richard Good) website and check out the complete setup that he offers for the TR3-4 engines. I have 2 complete sets one for each of my performance engines (10.5:1 and 12.5:1). They are superb quality and absolutely bullet proof – I have definitive proof to back this claim up but that’s for another discussion. Are they really worth the effort - there’s absolutely none, they bolt right in with no modifications. However you do have to use an alloy valve cover or purchase an aluminum spacer from him, to allow rocker arm clearance under the stock valve cover. Worth the price that’s hard to answer as I’m sure that you will get lots of opinions both for and against especially when you consider the use that we are putting our engines to and the amount of stress that we are subjecting the components to. Are roller rockers overkill ?????. For what it’s worth when I asked my machinist, whose business is building V8 push rod engines for oval and drag racing, for efficiency of operation and durability they’re the only way to go. Subjective I know but he showed me all the benefits on an drag engine under construction which made the decision really easy for me.

Benefits of the Goodparts kit:

-        Rockers are constructed from high strength alloy with ball bearings in both the shaft end and the tip and available in 1.55 and 1.65 ratios;

-        Rocker shaft hardened;

-        Pedestals are high strength alloy and the end pedestals have an extension that supports both ends of the shaft with additional clamping at the ends;

If you decide to go with roller rockers I would recommend (heartily) that you purchase ARP pedestal studs with nuts and washers and, push rods from Smith Brothers. I can give you part numbers and specifications for both if you want them.

 

I’m sure that your question will lead to an interesting string.

 

Barry.

 

 

From: Fot [mailto:fot-bounces at autox.team.net] On Behalf Of STEPHEN BOROWSKI
Sent: Friday, September 02, 2016 9:53 AM
To: FOT List
Subject: [Fot] Which Roller Rockers for racing TR4

 

Hello All,

Are Roller Rockers really worth the effort & price? Which ones ? What's the best set up for the TR4? 

 

Thxs. Steve

 

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