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Old 04-25-2010, 12:35   #1 (permalink)
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429 Police interceptor info

Ive been looking for a project for sometime but haven't really come across anything. Just the other day my g/fs dad told me they may have gotten a 73 429 police interceptor in at their salvage yard. I've been searching all day to figure out the difference between the 429 pi and the run of the mill 429.

Can someone help shed some light for me as I can't find any real good info on the 429 pi.

I plan on going and getting the casting numbers next weekend and post um up to verify what I'm actually looking at purchasing is a 429pi.
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Old 04-26-2010, 19:37   #2 (permalink)
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cool Re: 429 Police interceptor info

Quote:
Originally Posted by Draven8795 View Post
Ive been looking for a project for sometime but haven't really come across anything. Just the other day my g/fs dad told me they may have gotten a 73 429 police interceptor in at their salvage yard. I've been searching all day to figure out the difference between the 429 pi and the run of the mill 429.

Can someone help shed some light for me as I can't find any real good info on the 429 pi.

I plan on going and getting the casting numbers next weekend and post um up to verify what I'm actually looking at purchasing is a 429pi.
  • From somewhere in the 1960's and up to/including the 1970 model year, the FoMoCo PI engines were FE's, typically the 428PI (which is of the FE Family, not to be confused with the 429PI, which is of the 385 Series Family).
  • In 1971, the 429PI debuted. It was basically a 429SCJ engine with D0OE-R heads, 4-bolt D0VE-A block and forged flat top pistons, etc. The SCJ intake may have had the spreadbore carb pad, though (I'm not sure)
  • In 1972, the dedicated 429PI engine was released. This engine had the 4-bolt D0VE-A block, D2OE-AB Police Interceptor heads, flat top forged pistons, and an SCJ-style intake with a spreadbore carb pad.
  • I'm pretty sure that 1973 was still the 429PI. I believe it had TRW "D"-shaped dish pistons and the D2OE-AB PI heads. Not sure what it had for a block and intake.
  • 1974 was the 460PI. Here is where I don't know what's going on. Somewhere around this time or perhaps in 1975, they went to the D3VE-A2A passenger car head.

How are they different from a base model 460? It depends on the specific year and the components used. The newer the engine, the less performance value (due to fewer hi perf parts).

You need to get the casting numbers off the intake manifold, the cylinder heads, and the block. Then, we will have a general idea of what you have for an engine.
  • The cylinder head casting numbers are on the outside of the head, along the valve cover mounting rail, and between the 3rd and 4th exhaust ports.
  • The block casting number is located behind the starter and reads vertically. Crawl under the vehicle with safety glasses, a rag and a flashlight.
  • Intake manifold casting number is atop the intake, next to the carb pad.

Post the numbers and I may have a better idea of what engine you have.

Paul
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