Cadillac engine knowledge

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(Intake)
 
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[[Image:Cadsuburban.jpg|frame|A Cadillac engine in an early Suburban]]
 
[[Image:Cadsuburban.jpg|frame|A Cadillac engine in an early Suburban]]
 
[[File:Caddyv12.jpg|thumb|500px|Mid-'60s Caddy V12 60 degree SOHC engine- never reached production]]
 
[[File:Caddyv12.jpg|thumb|500px|Mid-'60s Caddy V12 60 degree SOHC engine- never reached production]]
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===Intake===
 
===Intake===
The stock intakes used on the 472/500/425 engines leave a lot to be desired. They are a very low rise design, some are single plane, but not in a high performance sense. Also, the stock intake is of a "negative plenum" design in which the air/fuel mixture actually flows below the intake port, then back up to the port-not good for flow.  
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The stock intakes used on the 472/500/425 engines leave a lot to be desired. They are a very low rise design, some are single plane, but not in a high performance sense. Also, the stock intake is of a "negative plenum" design in which the air/fuel mixture actually flows below the intake port, then back up to the port-not good for flow. It was made this way to clear the Eldorado hood, and consequently these aftermarket intake manifolds will not clear the stock Eldorado hood.
  
 
MTS/CHP, Edelbrock and others make aluminum aftermarket intakes that are better suited for high performance duty.
 
MTS/CHP, Edelbrock and others make aluminum aftermarket intakes that are better suited for high performance duty.
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===Cam timing/degreeing===
 
===Cam timing/degreeing===
The stock cam can benefit from advancing the cam timing 2 degrees, as these engines had retarded cam timing in stock form for emissions. Attach the degree wheel to the crank with a 9/16-24 fine thread bolt.
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The stock cam can benefit from advancing the cam timing 2 degrees, as these engines had retarded cam timing in stock form for emissions. Attach the degree wheel to the crank with a 9/16-18 fine thread bolt.
  
 
==Transmission bolt patterns==
 
==Transmission bolt patterns==

Latest revision as of 13:41, 7 September 2023

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