53-62 Fan to Water Pump Hub Bolts

[Rich P.]

OK all you solid axle guys.....I can tell you any mid year bolt, thread and headmarking from memory BUT I have only worked on a few original Solid Axel cars. So my question is which of the bolts in the picture have you seen for the fan to water water pump hub.

I have seen the WB and little 2, WB, UR, E and L8 (which I forgot to add in the picture). I have removed the NL4 bolt off of many many 53-62 Chevroles in junkyards but have not removed them from a Corvette. If any of you have I'd like to know.

Thanks in advance for your time,
Rich

[Gary C.]

Re: 53-62 Fan to Water Pump Hub Bolts

Rich, typically a "L" head mark in 56-7 fan bolts. Gary....

[Larry C.]

Re: 53-62 Fan to Water Pump Hub Bolts

Rich, My original 1962 340 hp fan to water pump flange uses 4 hex head bolts that have six hash marks around a small "L" in the center. I could not get a good view of the heads you posted. Larry

[Roy B.]

Re: 53-62 Fan to Water Pump Hub Bolts

Rich, typically a "L" head mark in 56-7 fan bolts. Gary....

I agree

[Mike E.]

Re: 53-62 Fan to Water Pump Hub Bolts

OK all you solid axle guys.....I can tell you any mid year bolt, thread and headmarking from memory BUT I have only worked on a few original Solid Axel cars. So my question is which of the bolts in the picture have you seen for the fan to water water pump hub.

I have seen the WB and little 2, WB, UR, E and L8 (which I forgot to add in the picture). I have removed the NL4 bolt off of many many 53-62 Chevroles in junkyards but have not removed them from a Corvette. If any of you have I'd like to know.

Thanks in advance for your time,
Rich

I've never seen the L8 or the NLB on a 61-62-- the WB with a 2 is also an odd one--generally I see WB, or E.
Regards,
Mike

[Christopher R.]

Re: 53-62 Fan to Water Pump Hub Bolts

Not sure about the manufacturer's marking. But I do know that those bolts had 6 hash marks. You need Grade 8 bolts there.