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Original Message
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| RE: "Nascar" 427 |
| By Al A. - 10/09/2003 2:48:27 AM; IP 67.75.32.220 |
Roy,
Well, you got part of it correct... The the 427 was indeed made as a LR, HR, MR and TP 427 FE engine and used in "NASCAR" racing. There was in fact a few SOHC engines that were developed by H&M for Ford, but the Chrysler guys found out and whined, so NASCAR changed it's rules to prevent their actual use in NASCAR, but they aren't all truly considered "NASCAR" 427s for the following reason. In order to be considered a "NASCAR" 427, it has to have the special Forged steel extra thick journal (1.838) 7000 rpm "NASCAR" crank and the special 7000 rpm "NASCAR" rods. The block and heads used were pretty much immaterial to the question as long as it was a cross bolt main 427 block, it could take the "NASCAR" crank and rods (although the oil pan flange DOES have to be notched). THAT was (and is) what makes a 427 a "NASCAR" engine.
Fact is, I have one of those 427 7000 rpm wide journal "NASCAR" cranks... I had intended at one time to offset ground the rod journals back to the "std" 427 journal size (1.758) and use some LeMans rods I have and some stroker pistons to get a 437cid engine with a compression ratio of around 8.5 - 9 (depending upon how much of the dome of the TRW stroker pistons I milled off), in order to use a turbo or supercharger on the engine.
Sadly, a broken back and the onset of age related MS, I now find that project a fast fading dream. Probably end up selling all that, hopefully to someone up to the task of building a killer turbo/super charged street 427 (437) engine. (which since it would no longer have the wider journals nor the special rods, it would NOT be considered a "NASCAR" 427).
But to answer the original post, if it doesn't have the special thick journaled crank and rods, it may have been used in a NASCAR racing car, but it's NOT considered to be a "NASCAR" 427.
Regards Al A.
P.S. Information provided from the 1985 edition of the Ford SVO "off highway parts Applications and specifications FOR FORD VEHICLES" loose leaf insert for authorized Ford SVO dealers....O.H.O.-725
AND my own personal knowledge for whatever that's worth! ;-) |
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