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  #1  
Old 01-13-2013, 11:53 AM
carpoor carpoor is offline
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Location: FL
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Default 71' YS 400...

Have recently acquired a complete long block out of a 71' Formula. Appears to have never been apart, complete intake to oil pan. It is currently all broken down for inspection, what threw me for a loop was the cam... it is clearly stamped "068." I thought the 71' & 72' 4bbl 400's had an 067 camshaft from the factory?

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1972 Chevelle SS 2dr hardtop 454 LS5 4 spd - "Pure Stock"
1969 Chevelle 2dr hardtop L72/M20 - my "retirement" project.
1968 Chevelle 2dr hardtop 6.0/80E - pro tour-ish
1972 Monte Carlo turbo 6.0/TH400
2001 Silverado RCSS LQ4/80E swapped, cam, headers, FBO.

1972 E lCamino SS AFR headed 454/TH400 - the old man's project
  #2  
Old 01-13-2013, 01:32 PM
'ol Pinion head 'ol Pinion head is offline
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cam has to be a replacement.
original "068" cam was stamped with an S. next smaller cam, the 067, was stamped with a P

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  #3  
Old 01-17-2013, 09:05 PM
carpoor carpoor is offline
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Great info once again sir, thank you.

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1972 Chevelle SS 2dr hardtop 454 LS5 4 spd - "Pure Stock"
1969 Chevelle 2dr hardtop L72/M20 - my "retirement" project.
1968 Chevelle 2dr hardtop 6.0/80E - pro tour-ish
1972 Monte Carlo turbo 6.0/TH400
2001 Silverado RCSS LQ4/80E swapped, cam, headers, FBO.

1972 E lCamino SS AFR headed 454/TH400 - the old man's project
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