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| | | | Joined: Nov 2013 Posts: 56 'Bolter | | 'Bolter Joined: Nov 2013 Posts: 56 | Hello, I have three different new pumps (m45) and they all have a different color springs in the relief port. They all have noticeably different resistance to pushing the valve also. Does anyone know what spring color or proper psi I should be running? It's a newly rebuilt 261 engine. Thanks.
1953 Chevrolet Handyman Wagon 36k
1938 Buick 38k
1947 Hudson Commodore 18k
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Entire Thread
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Proper Oil pump Relief spring for 261
| bigblack'74 | 03/25/2020 11:47 AM | |
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