announcement probably tomorrow that day came and gone....... can't sell 'em if ya can't see them..........
I stopped by the TA tent and saw them. Sorry I didn’t grab a picture. I’ll tell you one thing though. They are beautiful.
Mike told me that they were too busy during all the racing and visits to make announcements. He said when they get home. Long drive ahead. My friends making the drive from St George UT to St Louis MO was a trek.
I think you're a little out of touch here. Factory heads flow 180ish unported, 240-250 fully ported. I'm sure we'll hit 300cfm with the aluminum heads, but don't be expecting a ton past that. 260 out of the box is unrealistic when iron heads don't hit that. 350 heads are severely handicapped by the cross sectional area of the ports. Not much you can do about that without getting exotic.
Buick 350 Rick Crawford Iron N/A Stock N/A 55/44 112/100 165/119 199/137 196/146 199/149 Buick 350 Rick Crawford Ported Iron N/A 1.92/1.55 N/A 65/66 122/114 180/150 236/179 260/191 264/199 Taken from this website in the Buick section; http://www.users.interport.net/s/r/srweiss/tablehdc.htm Also have read many times on v8buick.com around the same "stock'' flow numbers from various other postings here. 300 cfm potential would be great, wasn't really expecting much more than that from a small block head but would expect a performance head to have at least 60 cfm more than factory out of the box. Working on a set of sbb 350 irons right now, will let you know what kind of flow numbers we end up getting.
Sorry, didn't mean to get member's hope's up with a post.. Just curious of the potential exhaust flow numbers?
what size can you open the intake ports to?? have a kinsler f.I. unit that has big ports. rather not epoxy them smaller.
You could put stock 455 intake and exhaust valves in the head. Largest intake would be 2.05, I'm doing 2.02 intake 1.60 exhaust in my head. I just finished testing different angle tulip exhaust valves. See below: ....................12°........14°.......21° 0.050”......28.3......23.7......23.6 0.100”.......50.1......47.0......44.9 0.200”......86.6......83.6......84.9 0.300”.....132.2....130.2.....131.3 0.400”.....166.3....167.5.....168.2 0.450”.....174.7....177.2......178.5 0.500”.....182.2....183.1.....185.0 0.550”.....185.6....186.6.....187.2 0.600”.....188.1....188.1.....188.8
It's really exciting to start seeing some of the flow numbers on the new heads. Do these numbers represent heads that have already been CNC ported?
To have a CNC porting program written requires hand porting a head then having the port digitized. That's the easiest way. I've only toodled around porting the heads. I'm working on my set right now. We're out to dinner with our head designer right now discussing what to do porting wise on the 350 head.
Is the the bare casting offering going to come with valve seats installed - if so for what size valves?
Three stages: Stage 1, bare castings, non-ported, bigger intake and exhaust valve seats. (Why wouldn't you upgrade a little bit?) Stage 2, fully assembled, with bigger valves, springs and retainers, ready to run out of the box, good for up to .600" lift. Stage 3, fully ported, fully assembled with the biggest valves that will work. Max Effort, Max Lift. For the people who want to do all their own work, the first stage would be the cheapest price, and they can port them to whatever their hearts desire, and run any spring/retainer and valve size they want. For people who don't want to lose too much bottom end torque, and don't really care about porting the heads..."just gimme something that is way better than stock, that is good to go, right out of the box"...and can handle any cam from stock lift to .600" lift with zero issues in reliability, Stage 2 is for this crowd. For the people who have waited for TA Performance to come out with the most insane, power adding, high performance, fully race ported, ready to run outta the box, Aluminum Buick Racing Head.....the Stage 3 is the only thing you will ever need, as there is nothing better. Cool thing with aluminum heads, is the seats...they can be almost any inside diameter you wish, so choosing a valve size is easy, as the machinist who is cutting the seats to the size you have chosen, will be the one who "blends" the seats into the throats of the ports. Those exact same seats can be used for the fully ported, biggest valve set heads as well, because they again will be blended by the CNC program, for a completely flawless transition from seat to throat. Just my thoughts on how the new heads should be available...and I know which set Haydn wants....lol
55cc, well that's good. I should be at 11.15 then. Don't want to have to rely on race gas for street use! Wish this was still around....
