639 c460 heads

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Post  mr.horsepower on April 23rd 2017, 2:03 pm

This is my build from last year in a mud truck,

A460 block, 4.630 bore, roller cam bearings
Callies 4.750 stroke
Oliver 6.735 rod
Lem spec'd Diamond pistons, 1.200 c/h, thin ring pack, 0cc dome, .012 in the hole .045 head gasket, 15.8 or so on the compression
Lem spec'd bad azz grind, 287 in. 307 ex., .902 in. .861 ex. with 1.75 ratio rocker, 115.5 lobe separation, set in at 114.5
c heads and single cast intake done by Mr. Oakley, full boogie 534@.800
w.w. rockers
crower hippo .874 lifters
trend 7/16 pushrods
gz vacuum pump
nothing special on the oiling system, kaase pump and a canton 8 qt. truck pan
big azz quick fuel carb 1.96 venturi 2.30 throttle bore with jomar spacer, courtesy of Mr. Oakley

It went 1170@6800, 950@6200 on q16
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Post  rmcomprandy on April 23rd 2017, 5:48 pm

mr.horsepower wrote:This is my build from last year in a mud truck,

A460 block, 4.630 bore, roller cam bearings
Callies 4.750 stroke
Oliver 6.735 rod
Lem spec'd Diamond pistons, 1.200 c/h, thin ring pack, 0cc dome, .012 in the hole .045 head gasket, 15.8 or so on the compression
Lem spec'd bad azz grind, 287 in. 307 ex., .902 in. .861 ex. with 1.75 ratio rocker, 115.5 lobe separation, set in at 114.5
c heads and single cast intake done by Mr. Oakley, full boogie 534@.800
w.w. rockers
crower hippo .874 lifters
trend 7/16 pushrods
gz vacuum pump
nothing special on the oiling system, kaase pump and a canton 8 qt. truck pan
big azz quick fuel carb 1.96 venturi 2.30 throttle bore with jomar spacer, courtesy of Mr. Oakley

It went 1170@6800, 950@6200 on q16

That will haul the mail ...

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Post  Curt on April 23rd 2017, 9:22 pm

Get'r Done! Basketball
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Post  mr.horsepower on April 24th 2017, 8:32 pm

she was definitely a runner
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Post  mr.horsepower on April 24th 2017, 9:32 pm

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Post  Lem Evans on April 24th 2017, 9:36 pm

Clean deal....how much vacuum?

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Post  Lem Evans on April 24th 2017, 9:36 pm

x

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Post  mr.horsepower on April 24th 2017, 10:03 pm

Lem Evans wrote:Clean deal....how much vacuum?

ran it at 10 and 12 but did not see a difference, but when I put the engine in the truck it was reading quit a bit lower on my gauge than on the dyno so I made sure the motor was still sealed up good and it was fine, so I readjusted relief valve, so its kinda unknown what it was actually pulling on the dyno
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Post  68formalGT on April 24th 2017, 10:38 pm

Are you going to Orleans, NE June 3rd?
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Post  cool40 on April 25th 2017, 2:08 pm

Cool
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Post  old blue on May 5th 2017, 10:29 am

Awesome build
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