Drag Racing Discussions > Front Engine Dragsters
Sidewinder Flathead FED
Sidewinder:
DF, you are absolutely right:) The plan is to sleeve all 8 cylinders with 0.125 thick sleeves. And fill the block up with either epoxy or block-rock. This will solve a lot of week links, cylinders will be better, no more leaking studs, can open up the exhaust and itake ports even more, also supporting the lower end even more:) Then we can lower the CR even more, for higher cylinder pressure. MORE POWER:):)
PS! The cracked parts have been investigated by my NDT controller, an he says that it's due to an old crack;/
Any advice on sleeve quality?
/K
denverflatheader:
I’ve never had a drag engine with a sleeve so not sure for your question.
The early ford fh v8s had factory sleeves by design. 3-3/16” bore with a 1/16” thick sleeve for 3-1/16” piston diameter by 3-3/4” stroke for 221ci. Ford’s idea on rebuild was install new sleeves and reuse pistons. That was back in the latter 1930s. Then in the 1940s and 1950s, ford just left the sleeves out and kept the 3-3/16 bore for 239ci. Sleeve quality and how to install properly surely has improved since the 1930s???
gasserx:
Sorry to hear about that Kjell, but i know you will get it fixed in some way before next season.
denverflatheader:
K - a clubmember has a 59 merc block (bare) with a sleeve. I'll pick it up next week and take a look at it and find out any information on the block and sleeve and how it worked, and let you know... DF
Sidewinder:
Thanks DF:) I'll take all the information I can get:) Need to fix the Block, to many hours on it;)
I have done alot of calculations, and the Sidewinder should be good for low 9 sec. ET's:)
/K
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Taildragger&fenderless
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