jay (74.138.101.241) - Mon Jun 11 23:38:08 2007

How can you tell if you have a 401 or a 425 engine?

Thanks Jay

Reply #1 George (65.220.16.62) - Wed Jul 18 12:37:40 2007

Interesting question. My 64 Riviera has the original owners manual in the glove box with 401 circled. The other possible engine listed is the 425 with dual carbs. The really curious part is that the bore and stroke of each engine is the same in the book.

Googling Riviera 64 seems to show that 401 was discontinued after 63 and all 64 Riviera engines were 425.

But, recently in Hemmings I saw a 64 with a 401 listed. Could it be that the owners manuals had a misprint? Or were some 401s used for a while in 64?

I, too, would like to get to the bottom of this one.

Reply #2 Bruce Heintz (71.87.125.99) - Wed Apr 2 22:47:03 2008

1964 the base engine was 425 Cu not 401

Reply #3 Bruce Heintz (71.87.125.99) - Wed Apr 2 22:53:48 2008

the engine production code , which is stamped on the front of theblock near the head attaches, does give data, the # it gives the last 8 numbers to the VIN and you will be able to tell if the engine is the one that came in the car originally or not. Maybe you have a 401 that is not the original engine and thats why 401 is circled? hope that helps

Reply #4 Chris (71.193.64.42) - Mon May 19 21:32:17 2008

Where Can I find a body mount kit for A 64 Riviera with a 425 wildcat

Reply #5 Rick (70.220.5.11) - Thu Jun 5 16:11:37 2008

Where can I buy parts for my 64 Riviera?

Reply #6 Rick (70.220.5.11) - Thu Jun 5 16:15:37 2008

Where can I buy parts for my 64 Riviera?

Reply #7 Bob (70.181.38.59) - Sat Aug 30 10:17:37 2008

I am purchasing a 1964 Riviera. It has road wheels like a 65 with a spinner. Where these rims offered in 1964? Bob

Reply #8 cesar (75.210.141.68) - Fri Sep 5 23:22:57 2008

I was told by my mechanic who's rebuilding my 465 wildcat that I have to have a cam machined because he could not find one already made this means big bucks HELP!

Reply #9 angela lockett (12.218.198.44) - Mon Oct 13 13:24:38 2008

I need a turn signal switch for a 1964 buick rivera, I have called just about every parts store online and have still come up empty handed, if there's anyone out there that can help me please email me back at ZARANETTE_1@YAHOO.COM.

Name:           
E-Mail:         

Optional (please add to our directory first)
Web Link:       
Link Title:     

Message: