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Ford Flathead dragster build
ricardo1967:
--- Quote from: andrewb on March 05, 2014, 07:52:24 PM ---Yes, it's filled with aluminum. My father-in-law had two blocks filled 25 years ago. He build one, which is still running, and had this one. If I had to fill another one I'd use epoxy. We fill other blocks with it and it's so much lighter.
--- End quote ---
Thanks Andrew. Aluminum block filling is bitchin' old school. I used HardBlok in my SBC 400, man that thing is a heavy paste.
Paul New:
Hard to tell on my phone but the front wheels look like Borranis to me
denverflatheader:
andrewb – enjoyed seeing your intake pictures. Modern twist for a fh and maybe less weight. And “almost complete” always nice to reach a milestone in any project, bit exciting to share accomplishments, good job! I’m sure your wife already knows you into race cars, continue treating her like princess, she’ll be helping you more than you know. Maybe buy her a file : )
I saw your other post, you might check with your local race track for their chassis cert/tech day. If it’s close by and convenient, take it there. Put on your polite hat and visit with the nhra sfi tech, let him know what you’re doing and show him your chassis. I’m guessing he’ll be helpful (and won’t charge you the $150). In about 5-10 minutes, he can provide guidance on the big items of concern, then you can plan and make better decisions. DF
p.s. you probably already know, but for fed with fh, usually a conflict with zoomies and top chassis rail.
andrewb:
Hey Denverflatheader,
The only problem my wife has with it is, once it's complete, is I wont be able to spend time at the track working on her's. I married into a drag racing family and her hot rod is a 1967 Cassidy car running an injected nitro 55' Desoto Hemi. Her brothers is an almost identical setup. Here's a pic of them from last year.
I'm a little familiar with the Flathead zoomie issue. My wife ran an injected nitro fl in her car a few years back and there were clearance issues. If this chassis works out I'm pretty sure I'll be modifying the front frame rails. At least step them down in size and at the same time try to accommodate for the exhaust.
I did leave a message with our local inspector to see if I can get him to do a once over on the chassis.
Since you're a flathead guy, here's a picture of the lifters I'll be running. I ended up having to them made and they're out getting polished and DLC coated now. The coating is needed because they are made out of 8620, which is the same material as the cam. I'm really trying to get the rotating weight to a minimum, and the mushroom lifters are 40 grams less that the typical Johnson style adjustable lifters. I can also go with a bit higher lift cam with them.
Pretty much everything with this engine is custom, I even had magnesium bronze valve guides made. I'm just wanting the titanium valves to wear better.
Anyway, I'll be posting pictures of my progress but it may be a year before I'm done.
Andrew
denverflatheader:
Yes Andrew, neat photo! Hope those hemi’s run in a different class than your fh, probably create a little friction losing to a L-head, although be fun with your family : ) Had to read up on 8620 alloy and DLC, always a good day when I learn something new, found 8620 is between .50-.55 carbon and 4130 is .70 and they can be used interchangeably on some parts. Your engine got me curious, I agree on less weight, plus helps your valve springs. The ti valves $$$ compared to ss (cost-benefit analysis). I’ve seen mushroom style lifters before, never like those and never in a fh. I’m guessing your plans are to run 8620 cam less bearings to increase lobe/lift, you might achieve over 0.500 (pretty rare for V8 ford fh) maybe prompting your decision for mushroom lifters. You been studying your engine build for awhile… I think what you doing very cool! Taking your time, smart move. DF
8620 Alloy (from ehow.com) When the 8620 alloy is properly carburized --- heated to a set temperature and then exposed to an agent containing carbon, a process which adds an extra layer of carbon to the outside of the steel, thereby making it stronger --- it is used to make such machine parts as gears, crankshafts, and gear rings. Carburized 8620 alloy is strong and durable, which is why it is preferred for these parts.
Properties of Diamond-Like Coatings (from azom.com the a to z of materials)
Amorphous (a-C) and hydrogenated amorphous carbon (a-C:H) films have high hardness, low friction, electrical insulation, chemical inertness, optical transparency, biological compatibility, ability to absorb photons selectively, smoothness, and resistance to wear. For a number of years, these economically and technologically attractive properties have drawn almost unparalleled interest towards these coatings. Carbon films with very high hardness, high resistivity, and dielectric optical properties, are now described as diamond-like carbon or DLC.
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