Jim, just the individual rocker spacing on the shafts need to be moved slightly from stock spacing due to the valve spacing being wider on the aluminums vs the irons. Only the thin walled aluminum spacers need tweaking. Shafts stay as they are. Fore & aft location stays, side to side alignment is the issue.
just an update why this hasn't gone anywhere. my wife was in the hospital for 6 weeks. everything with it has slowed me down to a stop, but not looking. continued meandering thru 1.7 rocker world, looked the ford 390-428's. they use a stand to locate rockers. well i have bunches of spare head to r&d cutting the stands off and locate the fords wherever they need to be. https://www.atracingworld.com/Ford-...1.76-Ratio-Aluminum-Rocker-Arms-With-Hardware is one style. there are similar ones at different prices.
Hey John, at least you're not in reverse like some. I'd get just one rocker from summit and do some reverse engineering. Hope your wife hurries & heals....
Hope all is well with your wife, Get Well Fast. That is not a bad price on those rockers need adjusted a little looks like You could make this work, especially for experimenting. I hope you do it and show some pics. 1.76 rocker that would pop open in a hurry wow.
honeydo is ok, but still with issues that will be forever. the 1.7's, its one of those projects i want to make work
Just 2 Kellogs box tops from crashing, close only counts in horseshoes and hand grenades. spring tester
the fe's are 1.76. now check your math. lol. have friend who might have a oem set so i can guesstimate. i never cut my block or heads because of what i am doing. i think i have a mile between them. maybe.....i will look. but i'm getting lazy. lol
Don't want this Fixed with this The newer bearing that replaces the old ones so if you have the old school rollers time to change, they are only 12 bucks each lol. Plus those 120$ each shafts, did I say shaft, yeah.
So looks like those older TA roller rockers with the sparsely spaced needle bearings aren't bulletproof....or maybe it's that thin azz Mobil 1 oil you use?
That 10-30 Mobile got nothin to do with it. from the spacing of the bearings is what caused problem, they don't move that far. the center ones wore out more.
Lol !! I had the exact same issue as you when I put this new build together, same old bearings and same damage to shaft Yes the cost of the new bearings and shaft made my butt pucker!!!!
HAHA Had the same issue. Honestly I think it’s from crappy bearings, as the new ones have twice the rollers, plus I bought mine in the mid 90’s so they have miles on em. Thing is you don’t know of the wear till you disassemble and look, cause they act and feel normal. BUT, you have a good point Mart, we switch from flat tappet to roller cams and such then think “I can use regular oil” It’s very similar to the C clip Chevy style rear axle where the axle bearing rides directly on the axle, gear oil has EP additives to help combat this but the bearings eventually eat the axle. I believe we should still use a “good” oil even with roller valve trains.
Well, the rocker shafts are hardened but it isn't bearing steel and it was never meant to have rollers riding on it. So there's that. Jim
Yep, hardened shafts, centerless ground with a bearing Rockwell would act like an inner race for those caged needle bearings.
