October 14, 2025, 10:36 PM
Little ChiefBrodix T1 (Older version)
I have decided to have the pushrod pinch in my heads welded so that I can switch to methanol. A couple of my friends tell me to get new heads since mine a so old and new heads would work better for me. I am bracket racing and ET isn't a concern of mine. The Sunfire runs in the 6.10 range and I am comfortable with that performance. I already need to purchase new shaft rockers and probably valves so the added expense is adding up quickly. What say you guys?
October 15, 2025, 06:41 AM
CURTIS REEDI use a set of Track1 heads that I bought in '97. The chambers are really slow and not very efficient. I wish I could upgrade to the Dragonslayer heads but it's not in the cards at the moment. They are a much better head and a good upgrade in my opinion. On my 383 it seems the heads are limiting me. I am on Methanol.
October 15, 2025, 12:29 PM
markemarkChad, where are you?????? This racer needs expert advice!!!!
October 15, 2025, 08:04 PM
BuckyI have welded pinch t1’s
Run well
But it seems like there are better modern choices. Heck even raised runner or 18 degree
October 15, 2025, 09:23 PM
Little ChiefThe T1 heads require shaft rockers, do most racers opt for heads with this type of rocker system or do you like a head with a conventional system? My old 355 ci from 1988 had Harland Sharp rockers with a junk stud girdle and just kept on trucking. But in comparison the old motor did operate at a significantly lower rpm.
October 15, 2025, 10:18 PM
markemark^^^^^^ If you can justify/ afford shaft rockers they’re really nice. Curly said in another post the Crower SS he has are his favorite and I agree. I just bought a second set of Crower to match the ones I have on Brodix DS heads.
October 16, 2025, 05:54 AM
Canted ValveThe valve train in a pushrod engine is a weak link by design. Shaft rockers would bring you into today's technology and be a big step up in performance and durability. That's the path GM took with their LS/LT engine families. I'm certain you'd be satisfied but I'm kinda spending your money here. Your call of course.
October 16, 2025, 06:28 AM
CURTIS REEDI have run Yella Terra hybrid shaft rockers on my T1 heads for many years. That said no matter the brand the stability of shafts is always desirable over stud mount rockers.
October 16, 2025, 07:59 AM
Larry WoodfinA correction, the original Brodix Track 1 heads do not require shaft rockers. Brodix does produce some 23* heads with offset valves, which require shaft rockers. [Check the Brodix website for these details.]
It is correct that shaft rockers are a nice upgrade. I have built some engines with them and am always impressed by how they hold the adjustment over time.
Yet, I have also built many SBC engines with 7/16 stud rockers, stud girdle, and the proper length pushrods that hold the adjustment well. This is by far the most common, having won many, many, many, many races with excellent durability.
Also, the Brodix Dragon Slayer head is an economical, out-of-the-box excellent performer. The fellows at Brodix tell me they fully ported a 23* head, and copied it in an as-cast version. This is the Dragon Slayer.