RPO 579 on 57's
Can someone explain the difference between the RPO579s for 1957, the ABCE(now D). Was there ever a 579D that was never released? What brought about the change from E to D? Comments?
-
-
Re: RPO 579 on 57's
RPO 579A=283ci, 250 HP FI
RPO 579B=283ci, 283 HP FI
RPO 579C=283ci, 250 HP, AUTOMATIC TRANS (MY CAR)
RPO 579E=283ci, 283 HP, with airbox
I don't know anything about a RPO579D -
Re: RPO 579 on 57's
According to the other forum, 579E is now being called 579D after efforts by Ken Kayser and others.Comment
-
Re: RPO 579 on 57's
I see in Kens fuel injection book (pg. 326) where he refers to RPO 579D as being included on GMs Corvette Dealers Price List.
He does not say anything about RPO579E be surperceded or obsoleted due to the 579D RPO.
Interesting stuff.Comment
-
Re: RPO 579 on 57's
It SEEMS that no one knows how, when or where the RPO 579E originated. BUT, however or whenever it did get started MANY, MANY, MANY years ago-------------it was WRONG. AND, just like many rumors, it stuck and virtually became gospel-----------and wrong, for all these years. Consequently, the hobby, the aftermarket vendors and even owners of 57 Airbox cars referred to the airbox-FI-HD pkg as RPO 579E and it eventually became "law" in ALLLLLLLL publications and catalogs. And all the while it was wrong. Since day one, RPO 579E NEVER made sense to me, but as basically a nobody person, I had ZERO input. FINALLY, Ken Kayser has come to the rescue of this long standing misunderstanding and clarified (HOPEFULLY once and for all) that the HD airbox FI pkg is in fact RPO 579D!!!
Oh ya, and even in the 2010 Black Book it is referred to as RPO 579E, BUUUUUUUUUUUT, in the 2011 Black Book, guess what, it's RPO 579D!
Thanks Ken!Comment
-
Re: RPO 579 on 57's
All 1957 Sales and Dealer information referred to the options as 1957E.
Last year I was able to purchase some 1957 sales literature that were draft mark ups for the 1958 year model changes and on the 579 option the E was struck out and replaced with a D.
Ken Kayser's great research revealed this anomaly. Unfortunately, it was too late to correct the 56-7 JM 5th Edition JM.
Gary
....
NCRS Texas Chapter
https://www.ncrstexas.org/
https://www.facebook.com/profile.php?id=61565408483631Comment
-
Re: RPO 579 on 57's
So do I have the following correct:
EF220,mt- base
FH220,at- base
EH245,mt- 469A
FG245,at- 469A
EM250,mt- 579A
FK250,at- 579C
EG270,mt- 469C
EL283,mt- 579B
EN283,mt,ai- 579D
It's pretty amazing that so much 'authority' in the hobby was unable to see or correct such a major discrepancy for so many years. I can't imagine someone's window sticker or some documentation didn't surface before Ken Kayser's book/research.Last edited by Robert G.; November 17, 2010, 08:05 AM.Comment
-
Re: RPO 579 on 57's
Window Stickers did not appear until September 1958Comment
-
Re: RPO 579 on 57's
Robert, no EN engines, that suffix was cancelled and never made it to production. All 283HP engines were EL. Mike Hunt did extensive research with owners in the 70-80's and the RPO 579D vs. E anomaly did not surface in any of the reports he wrote. Unfortunately, Mike is no longer with us. Ken Kayser arranged with the Kettering Institute to house Mike's data collection. I have a pretty extensive collection of 1957 Corvette literature of all kinds (Engineering, Sales, TSBs, Service News, Corvette News, etc.) and until Kayser found the reference in the GM archives he also believed it was RPO 570E. Gary....
Last edited by Gary C.; November 17, 2010, 08:48 AM.NCRS Texas Chapter
https://www.ncrstexas.org/
https://www.facebook.com/profile.php?id=61565408483631Comment
-
Re: RPO 579 on 57's
Ok, I was working from a 1992 copy of the Black Book, so here is where it stands. I guess I should buy Ken's book.
EF220,mt- base
FH220,at- base
EH245,mt- 469A
FG245,at- 469A
EM250,mt- 579A
FK250,at- 579C
EG270,mt- 469C
EL283,mt- 579B
EL283,mt,ai- 579DComment
-
Re: RPO 579 on 57's
Robert,
Ken's book is without question one of the most informative publications related to the development of the Corvette and Fuel Injection history. One of the things that makes Ken's book so significant, is that it is full of documentation and data as well as dates of occurances for the various developments.
If you are a diehard EARLY Vette lover, Ken's book will be an invaluable source of information. There was BOTH a soft and hard bound version. The hard bound (if I remember correctly) only had 100, numbered copies and they are probably all gone, but the soft bound may still be available. GET ONE!
I got both versions, and since I have a 56, I asked for, and got #56 in the hard bound.
Comment
-
Re: RPO 579 on 57's
Tom,Robert,
Ken's book is without question one of the most informative publications related to the development of the Corvette and Fuel Injection history. One of the things that makes Ken's book so significant, is that it is full of documentation and data as well as dates of occurances for the various developments.
If you are a diehard EARLY Vette lover, Ken's book will be an invaluable source of information. There was BOTH a soft and hard bound version. The hard bound (if I remember correctly) only had 100, numbered copies and they are probably all gone, but the soft bound may still be available. GET ONE!
I got both versions, and since I have a 56, I asked for, and got #56 in the
hard bound.
I agree, Kens book is fantastic and I also bought both the hard and soft cover versions. My soft cover is getting worn out from use.
My early 4360 unit #1136 is pictured on page 474 as it is a stamped and tagged unit.
I do believe the soft cover book is still available.Comment
Comment