i.d. buick nailhead

[ratrodz]

numbers on block in front of intake 4f6009531. what size was told it was a 1958-364 thanks

 

[speedbump2]

i.d. nailhead

The numbers to identify the block are on the rear of the block just in front of the bellhousing. Just below the distributor.

For a 58 - 364 they would be 1173201 or 1174372.

 

[ratrodz]

The numbers to identify the block are on the rear of the block just in front of the bellhousing. Just below the distributor.

For a 58 - 364 they would be 1173201 or 1174372.

it was 1173201 thanks speedbump2

 

[Nailhead]

numbers on block in front of intake 4f6009531. what size was told it was a 1958-364 thanks

the 4F on the front of the number means its a '59 401 but the casting number shows it to be a 59-61 364. Somethings not adding up. Either you misread/mistyped a number or the chart I have been using is wrong.

http://www.transmissionadapters.com/buick_casting_number_id_chart.htm