Wildcar 445?

Is there any difference between a Wildcat 445, and a 401 that is not marked as a Wildcat 445? Is one a hp version or are they both the same? Thanks.

 

The '64-'66 401's were all the same. They were all considered to be a "Wildcat 445" The only variation was the '65 and '66 "400" that was used in the Skylark GS. GM had a rule that nothing larger than a 400 could go in a mid sized car, so they just created a new set of ID numbers for the 401 when used in that car and called it a 400, even though it was the exact same 401 that they put in everything else. So all 401's are the same in those years.

 

Thanx. Sorry for the typoou:

 

Brian:

Just to add to the confusion, I believe if you look at the bore stoke calculation the 401 nailhead is also 400 cid.

Any chance of you bringing a Buick to the BOP car show at Hendricks Auto Mall Hy 64 west ,Cary, Sat? We start at 8 am in the morning. We need Os and Bs to beat back the GTO crowd. I am going to bring an Olds . I do not have any drivers I trust to drive my Buicks for me. Afterwards until dark there will be a great muscle car free for all at Gillle 57 in Garner--probably 3-400 cars.

 

I think a '401' actually is a 401 (assuiming the specs I read are right).

bore : 4.1875 in.
stroke : 3.64 in.
displacement : 401.04 in.

 

Perhaps a pi rounding error on Don's tables?

http://homepages.ihug.co.nz/~don_s/enginespecs.htm#buick

 

He uses a shorter stroke (3.625), so according to him, it really is a 400.

I know it's not terribly important, but if anyone does know for sure which really is the correct stroke (3.64 or 3.625), then that would answer the question.

 

Jim, I wish I had seen your post before I went to the show on Sat.--I had forgotten about grille 57 and had already made other plans for Sat. evening back here in Rocky Mount. Maybe I can catch Grille 57 next month.

 

Brian :

I would say 400-500 cars were there. Missed a good one.

 

www.buicks.net lists the stroke as 3.64 so am am going to presume Don has a bad number for the stoke of the 401 which if corrected would yield a cid closest to 401.

 

Hi ,The 445 refers to the torque rating .The 425 was called the Wildcat 465, again, refering to the torque .