Team Chevelle banner
Cancel

454 Big Block Casting Numbers

24947 Views 6 Replies 6 Participants Last post by  LS7, 
T
Can anyone please guide me in a direction where I could find out exactly what these numbers mean on my Big Block. Im guessing its the build date but couldnt find anything on here with a database. The casting number on my block are 361959 (P). Then theres C1677? From what Ive gathered the block is (P) Passenger big block from 73-76. Is this correct? Any guidance would be appreciated Thanks! :D
Reply
Save
Like
1 - 1 of 7 Posts
LS7
361959 454 73-90 2 or 4 bolt

Used in cars, P/U trucks, and some crate engine assemblies.

Look above the timing chain cover, there may be a suffix code stamped there.
Reply
Save
Like
1 - 1 of 7 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Team Chevelle
A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
Bench Racing Performance Engine Body Shop Chevelle Tech
Top