Ok all you flathead freaks it,s time to build a hand grenade flathead for the drags all in a 28/29 roadstar body tell me about your flathead Good or Not so good Bore / stroke I am thinking blown Injected Alky Thanks Regards Joseph
PM me if you want a local (Melb) guy to help in the process. He has built the fastest XF/GMR engine in australia. It included a set of aluminium rods he had made especially for it in OZ!! It was originally built for a flathead powered altered, but the engine got sold as he changed classes - to the six cylinder class with a falcon six. His porting ieas were "highjacked" by a well known flathead builder, and passed as his own!
Thanks Stovebolt His contact info would be great as with any info i can get on what works and what does not thanks rgs Joseph
post your results and formula...i'd like to hear about this...maybe tuning tricks and tips...could turn into a tech file
building two my dads is 59a thats 4" x 3 5/16" 3/4 isky ross pistons ss valves.mine is 8ba with 4 1/8" x 3 3/8" isky 400jr ross piston big ss valves balanced ported ect......both will be running edelbrock heads and intakes.whent through a few blocks to find some good ones. got lucky on mine found it at the pick n pull.hows that? good luck with yours sounds like fun.
think there 1.6 chevy.didnt won't no chevy parts but the guy doing my machine work thats been doing FHs forever said there a good thing.
Keep in mind that the tech requirements for a supercharged alchohol car will be a lot more stringent than a comparable unblown gas burner. This was true even 30 years ago. It is very possible to build a setup that will not pass tech anywhere...... Note: Actual experience involved here, not just hypothesis.
AnimalAin Tell me more is it safety gear your thinking or the fact that the motor may spray its self all over the track and hurt someone ?
sorry had to go eat some bbq ribs.not much FH experience here. only had one that ran before these two. frend of mine thats doing the block prep and stuff for me is building a roller cam FH for his sons car and is makeing up a hyd. roller cam setup for his car.uses some late ford lifters looks like ah cool deal. he makes some other nice stuff to.icecream time gota go.
Yeah, safety gear. The requirements don't differentiate between a flathead nostalgia motor and a 7000 hp John Force motor..... By the way, I was involved with a flathead dragster in my misspent youth (late 60s). We upgraded from the 400 Jr. to the 404 (the one that needs the special lifters) and it made a significant difference. The lift and duration weren't the big deal, I don't think, but rather the valve acceleration that got the valves open quicker. As I recall, it was worth a couple of tenths.....
Not sure about the crank and rods..... I was just a kid on the pit crew. I think it was the standard stroked Merc crank setup.... the usual 3/8 x 3/8 296 incher. Eventually ran in the 10s, which was not bad at the time; won class at '70 Winternats. One thing I do remember, we ran at least as fast with the four carb setup (97s outran the 48s)as we could make it go with the Hilborn setup, although I am pretty sure that was due to not enough experience to get the tuning on the injector tweaked close enough.
Two of the strongest flatmotor builders on the planet are Dave Tatom and Tony Barron. I'm posting Tatom's website address and will forward Tony's as soon as I find it; I lost it during the file transfer from my old computer to the new one. Tatom and Barron both trace their roots back to the Day but aren't locked into the past. For example, they're using contemporary camshaft designs, that didn't exist in the wayback, that substantially outperform the old favorites. Both men test and build with state-of-the-art flowbenches and dynos -- no super-optimistic computer modelling for these guys. Here's the link to Tatom . . . http://www.tatom.com/tatom2.htm I'll send you Tony Barron's contact info as soon as I find it.
Grease Martin down here knows a chunk about Flatties (see Bonniville reaults) I don't have an email for him on me but could dig something up if you needed it, he also drag races a pretty hot slingshot (if you call 8.5's hot)check out http://fullspeed.to/flathead
Ok now we are getting somewhere if any of you guys check out American rodder April 1989 page 62 this is what i am thinking with a flatmotor should be a good ride
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