stock cam specs

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stock cam specs

Post  bigblockfox83 on Thu 28 Mar 2013 - 23:22

anyone know the stock cam specs on a 69 460? im guessing the rockers are 1.73 on the older engines too?

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Re: stock cam specs

Post  69F100 on Fri 29 Mar 2013 - 0:01

form what I have gathered all 460 and 429 had 1.73 ratio rockers from the factory I am sure if I am wrong they will correct me
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Re: stock cam specs

Post  res0rli9 on Fri 29 Mar 2013 - 7:07


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Re: stock cam specs

Post  aquartlow on Fri 29 Mar 2013 - 10:02

69F100 wrote:form what I have gathered all 460 and 429 had 1.73 ratio rockers from the factory I am sure if I am wrong they will correct me

Not here to correct 69F100, just add some info Smile . The early 429-460's had 1.75-1 ratio rockers, from 68-71 and were rail type rockers with positive stop screw-in rocker studs. Todd
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Re: stock cam specs

Post  bigblockfox83 on Sat 30 Mar 2013 - 23:20

so does anyone know if the early 68-69 cams are different then the later 70s cams?

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Re: stock cam specs

Post  res0rli9 on Mon 1 Apr 2013 - 12:57

Go to the bottom.

C8SZ-6250-A Thunder Jet and later stock hydraulic cam
September 19 2009, 5:08 PM

256°/270° @ SAE - 193°/206° @ .050" - .253"/.278" lobe lift - .443/.487 valve lift - 110°/116° lobe centerlines - 113 LSA



Intake opens 16° BTDC

Intake closes 60° ABDC

Exhaust opens 70° BBDC

Exhaust closes 20° ATDC

Overlap 36°



Additional notes:



1) The early timing chains are straight up, so that the camshaft is installed in the engine from the factory at 110° intake centerline.



2) The retarded production timing set retards the camshaft 4 camshaft degrees, (8 crankshaft degrees), so that the camshaft is installed in the engine from the factory at 118° intake centerline.



3) The specs that Ford lists for light trucks is from 1968 to 1992 and is a superseded camshaft part number E3TZ-6250-B; used in ALL Hydraulic lifter Ford Motor Company's remanufactured 385 engines. The part number for the original 1968 to 1972 engines is C8SZ-6250-A which is the same as Ford/Lincoln Mercury passenger car engines and no different specs are listed.


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Re: stock cam specs

Post  bigblockfox83 on Mon 1 Apr 2013 - 23:11

ok so its the same just retarded timing sets make the difference. thats good info to know. on a 302 and 351 the pre 72 cams are a bit more aggressive then the smog cams. thanks

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