His name is Jay Michael’s if I remember correctly? Here is a post Dano shared earlier in the thread. He’s using a gear vendors overdrive with a 4.30 gear..
Good question, he still has that engine on the shelf I was bugging him to do some dyno testing with it but he (mike sr)wasn’t interested. It’s been a long time I can’t remember the details but he told me what all was done. I remember it was 283 pistons large bore, sine aftermarket rods of some sort, mega ported heads, big un streeetable cam.
I'm considering a set. Did your bare heads have any 11/32" guides installed? My car is close to the vette now. I raced a 6.2 SS Camaro and spun from stop, but stayed on his ass thru 1 & 2nd. Was a side street race from hole shot. He had 315's on rear and my little 255 bfg's sucked. The kid says his runs low 12's, supposedly 455 hp. He was impressed, thought I had a 455.
My heads did come with valve guides but I’m not sure what size they are. I’m sure you could easily sell your ported irons to behold make up part of the $.
Got a pic of rocker side and chamber side to post of your bare heads? If the guides and hardened seats are in, just probably need a finish hone & a 3 angle grind. Then the port work.
I don’t have any pics handy but yes they just need the porting finished and valve job. We are also using shorter valves vs the ones TA sells which will allow the valve to be sunk into the head a bit.
I left the larger TA valves proud on my irons, so a bit more compression was had. Got a pretty quiet valvetrain but lighter 11/32" stems would lighten things up even more. Titanium might be the route I would go with the aluminums. Did you use titanium valves on your good, max effort motor??
What are we waiting for lets get going here, you no how hard it is to get parts now? No more waiting time to do now, talking is over now I have heard this for years now lets go go go go go.
No thanks, who knows it could be a few years until TA finds a machinist LOL. These babies are collectors items.
I found some good used Ti valves I was able to use for my TA/Rover heads. Ended up going with 1.6 ex and 1.9 in but could have easily gone larger on the intakes which I had to cut down in the lathe. That was FUN let me tell you. I saved the shavings in ziplock bags, they make great fire starters. Burn really hot and bright. They come off the bit red hot too so it doesn't take much to light them off. Anyway I got sidetracked, but I'm serious it was fun. Had to also shorten the stems and that hit right near the bottom of the keeper groove so I ended up with a heavy bevel. Using lash caps instead of the hardened tips that you have to drill to insert. I just suspect drilling those suckers could raise other issues I didn't want to deal with. Anyway the stud mounted trunion type SBC rockers I got from Deepmotor on ebay <$150 put the roller close enough to the outside of the valve tip that I was worried the lash caps could cock so I sent those back and got a set of the TA-1309D rockers which are about the same thing but the bodies are steel and the centering over the valves is a little better. Not dead center but good enough.
Yep, with lash caps, I'd want them centered. More even load/pressure. What stem size on TI valves were available? Did you get a nice clean undercut using lathe for positive lock engagement? I think I'd grind that detail in....
Jim, someday, I hope someone appreciates all the dicking around that some of us have been doing to Hotrod these little cube motors up....good job buddy, keep it up!
I think I could have installed them with a little more preload, got them closer to coilbind at full lift since they are made for a .650 lift cam but I'll wait and see how it runs. If the valves don't float by 7500rpm there'll be no need to do anything else. I'm hoping with the Ti valves it'll do that. About 135 seated pressure and 350 on the nose IIRC. It's an ovate wire beehive from Alex's made for the Ford FE. Pretty good match for the TA head I think. The keepers are the single radiused groove type. I cut the groove with a formed carbide tool, it has no stress risers there. These are the 11/32" stems. Jim
