I have them in stock right now. Heres the deal. The pushrod clearance with 1.6 rockers is very close. The 1.7 's wouldn't work in the traditional format. The shaft had to be moved closer to the intake manifold. Our aluminum heads had the rockerarm bolts moved around to allow this to happen. If you have iron heads you would need a special set of rocker stands and would probably have to notch the shafts to get the bolts to clear. They basically built for our heads. I wouldnt say they can't work on iron heads but would take a little tinkering.
I was wondering how you achieved so much lift. Thanks for the explanation . I'd like to know a little more about the crankshaft ...it must be a 292 crank since it's a truck crank, right? What years of trucks had that steel crank? My 292 that we will be building soon is a '62 truck engine. I was considering using a 312 crank,is this a better way to go? Posted using the Full Custom H.A.M.B. App!
Good lord- I never expected anything looking like that- and you got some stout numbers off it. That's bad****!-rick
Congrats John and Geoff.. I think your 1.6 hp/cu in puts you at the top of the heap of Y Block builds Now you need to do one of those 375 inchers and get 600 hp
Thanks for the nice comments guys. A couple of things I hadn't mentioned yet. The timing cover on this motor is new new! Its a shortened version of the original. It takes 7/8" off the front of the motor for some of those tighter fitting custom applications. Ted Eaton supplied us with one of his electric water pumps. The combination of the 2 peices really cleans up the front of this engine. This engine ran well, not quite as powerful as the 343 with the dual plane but more powerful than the 343 with the single plain on "this" dyno. 8 o2 sensors is one of my new favorite things. There are some new parts in the works and on the drawing board right now.. I think the next couple of years are gonna exciting for Y BLOCK.
Actually, making 1.6 hp/cu.in. at 7000rpm, puts this Y-Block near the top of the heap of ANY small block single 4bbl 2 valve per cylinder engine. Very, Very impressive !! --- Steve ---
The engine was originaly setup to be a 7500-8000 rpm deal. But seeing how it will be bracket raced and get a fair amount of useage we backed down on the camshaft at the last minute to drop the rev range. There is definitley more power in it especially with some q16 and camshaft.
could you tell us what crankshaft damper you used? Almost looks like SBC, which might work with the shorter timing cover?
The crankshaft damper is an ATI SBC. It had to be honed a few thou and re-keyed. The new timing cover has the marine pan rail and takes a Y-Block water pump. The damper was extended so the pulley would line-up with a std water pump.
Man, the more information that you trickle out the more exciting the story gets for us oddball engine lovers. My ol' buddy Mike VV is doing similar things with his Studie motors. Way cool stuff!
Pretty big numbers on a Y block! I think that'll push my little Roadster down the track pretty quick. Posted using Full box of Crayons on the Kitchen Walls App!
We have been working on a new intake manifold that will be a tunnel ram or EFI compatible with different tops. Ted Eaton done some dyno pulls on a prototype of the tunnel ram. It has shown some promise and is being refined.
Hey John,nice work on the motor. I guess having buddies like Tim and Ted helps enormously Looking forward to seeing//hearing about its performance in a rail!
Y-block has been in my old hotrod from the time I built the rod in 1959,still driving. John's HP is exzelerating info,. I have been working along slowly on a homemade 4x2 log intake to dress it up some extra. Now that I completed the restore .
That IS what I meant !!! I was planning on installing the big block in place of building the Y-Block. I am using a Y-Block in my '32, but was not finding enough HP with the 292 until I saw your latest numbers. Keep it up..... Great progress...
Yeah the y- block builders and parts manufacturers are few and far between. Everyone involved pulls their weight to keep these old war horses moving forward. Luckily were dealing with an engine that is scratching on the racing scene again so everyone doesn't have to feel like were launching rockets. It makes it easier for us to work together.
The 64 Falcon is in the paint booth today and the Y-Block is here ready and waiting. It will still be a few weeks before it gets to the track but our local track stays open until December. Should be able to sort things out by then.
Who came up with the design of the fabed manifold? That would not been my first choice, but numbers like that don't lie. Great Job.
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