When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Have yet to see any casting numbers & casting dates; to help either confirm Or deny original numbers matching engine.
AFAIK, IF OE C3 Corvette sbc block, it should be a Flint block.
However, I do not see the square-head, tapered pipe-threaded oil galley plug at front of block, located just above timing cover flange and slightly right of centerline, and toward passenger side.
AFAIK, that square-head galley plug is indicative of all C3 sbc Flint blocks. Perhaps it is there, but that I cannot resolve it; OR there simply isn't one.
Have yet to see any casting numbers & casting dates; to help either confirm Or deny original numbers matching engine.
AFAIK, IF OE C3 Corvette sbc block, it should be a Flint block.
However, I do not see the square-head, tapered pipe-threaded oil galley plug at front of block, located just above timing cover flange and slightly right of centerline, and toward passenger side.
AFAIK, that square-head galley plug is indicative of all C3 sbc Flint blocks. Perhaps it is there, but that I cannot resolve it; OR there simply isn't one.
Werent all the sbc blocks cast in Saginaw and all built in Flint?
Have yet to see any casting numbers & casting dates; to help either confirm Or deny original numbers matching engine.
AFAIK, IF OE C3 Corvette sbc block, it should be a Flint block.
However, I do not see the square-head, tapered pipe-threaded oil galley plug at front of block, located just above timing cover flange and slightly right of centerline, and toward passenger side.
AFAIK, that square-head galley plug is indicative of all C3 sbc Flint blocks. Perhaps it is there, but that I cannot resolve it; OR there simply isn't one.
Originally Posted by Varmintmist
Werent all the sbc blocks cast in Saginaw and all built in Flint?
NO.
AFAIK, all C3 repeat C3sbc motors were completed at Flint, MI USA. (completed includes drilling oil galleys through block; there is more than one way to skin THAT cat)
BUT, there were Other sites in USA, Canada & Mexico that completed Many sbc for Other platforms (trucks, sedans etc). Perhaps your engine is one of those; that's Not uncommon when OE motor is replaced by one of those. Haven't seen Your stamp pad (which is easiest part to tamper with). If ya really wanna know if yours is "numbers matching", post up good, clear, sharp pics of a clean, paint-free pad; as well as those things listed below. Suggest use a real camera; not sloppy phone pics.
You wrote this: original numbers matching
* I'm not there to look at ALL the casting dates, casting numbers, pad stamps and other clues which help to flesh out identity. The "Flint Plug" is but one of many exemplars. By chance, I spotted it in one of your pics that, on the whole, don't provide much help to ID motor. Hey, maybe Flint Plug IS There But I don't see it ? Mind ya; not complainin', just sayin'
Glad for ya. Perhaps ya find joy in other areas as well.
So far, Numbers all seem to coincide. And from that angle the plug's clear as a bell.
Shucks, a camera may've done a better job of resolving pad's broach mark pattern ?
OK, Family stuff, a week at Toys for Tots, and some MCL presentations..
I got some more grade 8s today and pulled bolts from the engine mounts, all the linkages wires and cables are off, driveshaft is off the transmission, the rest of the exhaust is off, the only things left are the bolts holding the transmission and tension from the crane.
I'm hungry and done for today.
As an aside, one of the many things that need attention is that I have one of the Muncy 4 speeds that someone decided didnt need a drain plug. Anyone ever drill and tap one for a plug? If so, any things that got in the way or is it "make a hole, make threads" and be done?
Only missed one connection so I did OK.
Getting a call approx 2-3 this afternoon from the guy who is doing the rebuild. I know my limitations.
Need to drain the last of the coolant yet.
It needs to snow so I can get a neighbor on the hook by plowing his driveway..... I really dont want to guide this back in solo
My early 70 350/350 has no tank as well and like the above photo the factory dimples are not drilled out for the bracket.
im of the impression the L46 didnt use one
Only the ZQ3 base 300hp non AC engines got the aluminum radiators with the expansion tank in 69-70.
