It does seem a bit odd they've been so hush hush. I had a long conversation with Mike Jr at BG about these heads last year. I have zero doubt that they put in a lot of effort to produce a great product. The passion he expressed for the project was evident. It's just odd to me they aren't singing from the mountain tops about these things. I get the target demographic is relatively small, but with the time/effort/money they've put in and the attention they have from the SBB faithful, I'd expect some solid efforts to market these things and show their merit. I hope they're just organizing data or something (those Tomaszewskis are pretty bright folks so I have to believe there's a reason) but the lack of forthcoming information is somewhat surprising.
Yep, with the target crowd relatively small, like our 350 guru Sean says, these heads should be "a game changer".
I received delivery of my fully assembled heads yesterday. These are stage 1 heads and so the performance should be what is expected of a stage 1 engine. I have revised my calculation to somewhere around a 350- 370 HP for my build. This is not dragster type performance.... but it is much better than the 200 hp the original engine had.
Just put the second deposit on my heads this morning. TA will start porting and assembling them next week, I believe. I'm springing for the Level 1 porting. Getting pretty excited that this is all finally starting to happen!
Good luck with your head purchase guys. I believe with compression around 9.8-10.5 ,a decent cam and tuning you guys should get nice performance. 350-370 hp should be not be an issue with level 1 porting, 10.5 compression and ta 413 cam/or decent roller cam ,I would think over 400 should obtained.
Slicks w/ screwed beads work well on the street, as long as it's dry out. Back in the 70s I ran them on Woodward and it certainly detours people from calling you out at the lights.
Guy's. I will come on here soon and tell you what we have done to the heads and why. Yes we dyno'ed the heads. Most of the pulls were comparing intake manifolds. The best HP number we seen was 481. This was with a cam Michael had in his car in high school. Hyd roller version of the TA310 cam but ground on 113'. With 1.65 rockers it was .600"-231', 113'. 10.5:1 91 octane. Yes, I was hoping for 500hp. May have done better if the cam was 110' LS. A tiny bit more compression would help as well. I'll get on here and answer some of the talk soon.
That is basically 100 over mine I had 395 in 1994 so 500 should not be that hard. NICE! Add a 100 shot of nitrous to it. Go 75. Watch those numbers
I wonder what RPM produced that 481 HP and how much vacuum the motor produced at idle? That will tell you how potentially street able the engine could be.
