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I pulled this engine out of a 70 Chrysler New Yorker. The numbers I saw on the block are 25364308..What do I have based on these numbers? Heads etc.?

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that number is

2536430 440 1966-72 RB
2899830 383 1970 B
2568130 383 1959-71 B

Casting Number on LH Side of Engine VIN Number Stamped on RH Engine Pad

Casting Number CID Year Type Remarks
2202843 170 1960-64 G
2463230 170 1965 G
2463395 170 - G
2264478 170 - G
2205630 170 - G
2463430 225 1966 RG
2806830 225 1968-70 RG Includes 198
3462605 225 1975 RG
2951694 225 - RG
2202857 225 - RG
2205528 225 - RG
2465330 273 1964-66 LA
2806030 273 1966-69 LA
2463252 273 - LA
2536130 273 1965-69 LA
2806130 273 1966-69 LA
2264230 318 1960-66 A Polysphere
2468230 318 - A Polysphere
2532630 318 - A Polysphere
2466090 318 1967-74 LA
2806030 318 1966-69 LA
2806030 318 1967-74 LA
2536030 318 1967-75 LA
2566080 318 - LA
4104230 318 - LA Race - Painted Orange
2780930 340 1968-73 LA Except T/A & AAR
3577130TA 340 - 6 bbl 1970 LA T/A & AAR
1944929 350 1958
3418496 360 1971-74 LA
3870230 360 1975-78 LA
4179930 360 1975-1993 LA
1737629 361 1961-64 B
2120329 361 1958-66 B
2120429 361 - B
2128854 361 1964 B
2205712 361 1958-66 B
1945429 361 1965 B
2658930 361 1965 B
2120229 361 - B Industrial
1852029 413 1959-62 RB Max Perf. & Truck
2120529 413 1959-65 RB
2205697 413 1959-65 RB Passenger Car
2468030 413 - RB
2658836 413 - RB Industrial
2205697 426 1964 RB Passenger Car
2406730 426 1963-65 RB Wedge & Max Perf.
1852029 426 1962-65 RB Wedge
2468030 426 - RB Wedge
2440873 426 - RB Wedge
2532230 426 1964-66 RB Wedge & Max Perf.
2658836 426 - RB Industrial
1851729 383 1959-64 B
2128854 383 1964 B
2532130 383 1965 B
2120329 383 1959-60 RB Golden Lion
2899830 383 1970 B
2568130 383 1959-71 B
2468330 426 1964-71 RB Hemi Head
2536430 440 1966-72 RB
2658836 426 - RB Industrial
3614230 400 1971-72 B
3698630 400 1973-78 B
4006530 400 1976-78 B
3698830 440 1973-78 RB
4006530 400 1976-78 B
4006630 440 1978 RB

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but it's hard to see that side of the block now vs the other side. But I should have the 906 Heads?

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double springs on the heads? Can anyone xplain that 2 me?

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I pulled this engine out of a 70 Chrysler New Yorker. The numbers I saw on the block are 25364308..What do I have based on these numbers? Heads etc.?

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easier than that... find this pad and will get the displacement on a stamped number.

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383's didn't have the machined pad.

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pad for BBs are in here:


the other location is on RBs

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Sort of , the HP engine had different rods and double springs on the heads

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I think they were springs with dampener, not double really