NHRA W-30

Looking for a set of 4.66 ring and pinion { Olds 12 bolt rear - 31 spline axels } for my '70 W-30 NHRA stocker . Any one out there have any suggestions ? Appreciate any help !

Fun71

Contact 507olds (Brian Trick) or MONZAZ - they may have what you;re looking for.

NHRA W-30

Thanks-- wiped out a set of 4.66 gears couple years ago and have been running 4.33 ratio currently . They are ok , but I miss the 60 foot and harder pull at the finish line.

2blu442

Matt had a set for sale with the posi carrier. Check out this thread:

https://classicoldsmobile.com/forums...-66-gears.html

oldsmobiledave

https://classicoldsmobile.com/forums...ginal-box.html

NOS 4.33 gear set for sale if you can live with them

Can you post pics of your car and some details on your set up. Also what ET and MPH are you posting?

Thanks

NHRA W-30

Have 4.33 now--- my 60' times are suffering . Currently 11.60's at 113 and change w/ a blueprinted 468 and a Dale Smith factory race cam . I believe it is the last 70 w-30 still running stock in California . Currently in F/SA trim.

2blu442

Matt had 4.66's for sale. If you haven't checked with him you should see if he still has those for sale. He said he'd sell them with our without the posi carrier.

John

oldsmobiledave

Pictures. We must have pictures.


If you can not post pics email them to me & I will post.


Thanks

Dave


dlnicol@shaw.ca

Rallye469

Good lord!
What's your trap RPM with 4.33's & 4.66's???

-pete

rktolds

He contacted me. I sold mine awhile ago. Trap rpm when I was calculating for small block W31 clone was just south of 7000rpm.

oldsmobiledave

You can stuff a pretty tall tire under a 70 442. What are the tire restrictions in that class?

Chesrown 67 OAI

I have a set of 466 here for sale. Also a 672 low carrier 31 spline for sale too. Will have both at Csrlisle. Also have a 390 r&p for a Type P rear.

Oldsmaniac

When I used to bracket race my 67 4spd with 466's and 30 inch tall slicks I was going across the line at around 5900 rpm.

Chesrown 67 OAI

4.66

NHRA W-30

Thanks for responding -- My father raced for the factory late 60's and early 70's and new Ron Garey and the Chesrown guys well . His '67 W-30 is what got him the deal w/ Dale Smith and Olds. He ran the Manarina Olds cars out of western N.Y. Have a couple leads on 4.66 gears ---But sometimes folks don't know what is real or not . May get back to you re: yours . Thanks--- Brian Ranks

NHRA W-30

426 passes over 4 year w/ 4.66 gears hitting 6800 RPM at the stripe . After I cleaned off every tooth on the ring gear one nite, I could only find 4.33's ---- w/those I cross the line at about 6300 RPM

Chesrown 67 OAI

Brian. I met your dad in engiishtown 68 when we eon stock. He won D/S and was eliminated by Ron in bracket. Yellow 67, just like my white one, only mine was automatic. Small world. This set I have is almost new, very few runs.

BlackGold

Wow, that's impressive for a 455 stocker. I'd like to know your engine builder's secrets.

RandyS

I didn't think a big block would turn those revs in any case............

NHRA W-30

That motor was built by my father and I in 2005 for $1600 plus our labor. Pretty basic stocker blueprint w/ 95% OEM parts we had kicking around . At that time, some of the parts were still available to buy. When I replaced it in 2009 Nothing was left for new parts to buy at any price-- the result being I had to provide OEM specs on any things and have them c&c made for me . Cost jumped to $7500 plus our labor . Pops has built many stock and super stock record holders over the years.

oldsmobiledave

Posting these for Brian for all to enjoy.

Dave

BlackGold

Very nice!

davebw31

With 5:00 gear and Liberty pro-shifted 2:64 Super T10 4 speed, and 30X9 tire, shifting at 7,000 rpm (SBO 359 C. I. W31) I went through the traps at 6,600 at 114.5 mph. Needed a 5:13 or 5:38 gear if only NHRA allowed 12 bolt chevy rears at the time, which wasn't allowed till after I quit!

NHRA W-30

Dave-- My Dad ran a set of 5.38's in his '69 W-31 super stocker for a bit that year . Still have them , but a little too tall for my 455 stocker . Found a set of 4.66's through this post recently. Will put them in this fall after I finish freshening up the motor . Have taken most of this season off and want to come back w/ a bit quicker package . Looking to exploit a couple gray areas in the stock rulebook as well as switch to aluminum radiator { OK 1st time this year } .Set up for F/SA now but want to run E/SA next year as well .

oldsmobiledave

Were 5.13 & 5.38 gear sets only available to race teams or were these gear sets from aftermarket suppliers?


To my knowledge there were 4.33, 4.66 & 5.00 gear sets available @ the parts counter but I have never heard of these other 5 series gear sets.

NHRA W-30

Dave-- You are correct -- The 5.38's were given to the Olds factory drag teams by Dale Smith of Olds R&D . Don't know exactly how many were made , but it's possible that you could count them w/ your fingers and toes ! Late '68 -- to maybe early '70