Help identifying my smallblock

[Sadie_the_66]

My satellite collapsed a lifter so I figured I would go ahead and order a cam, lifters, and timing set for it; but as I looked into it more the more it confuses me. I was always told it was a 318, but the 318 in 66 was the poly motor, and mine is an LA, so that led me to belive that it was swapped into a later motor, I looked at the casting date on the side of the block and it looked like 12/13/65, which made me belive that it was a 273, as the 318 la wasn't made until 68. Then I got even more confused because 273s only came with solid lifters, and my motor is a hydraulic lifter setup. I thought I could settle any confusion by just looking at the casting number on the drivers side that would definitively tell me what the motor was, and it read 318. Like I said before the casting number was in 65 which would have been a poly motor. Is there anyway somebody could have swapped la heads onto a poly block?? There is also no stampings or anything on the front of the block below the head gasket if that matters. The fender tag also said it originally came with a 318. That was probably so confusing to read but at this point I'm just at a loss as to what the motor could be and any help is appreciated greatly... I'm just trying to get it running again after all.

P.S. happy father's day!!

 

[BeepBeepRR]

Look for numbers cast into the driver side of the block below the heads. Should give you a casting date and block casting number. Here are some of the block casting numbers in a list. Look for casting numbers that look like this.

Small-Block Mopar Engine Block Casting Numbers

2264230 – 1960-1967, 318 A-series small-block

2463252 – 273 LA-series small-block

2465330 – 1964-1966, 273 LA-series small-block

2466090 – 318 LA-series small-block

2468230 – 318 A-series small-block

2532630 – 318 A-series small-block

2536030 – 1967-75, 318 LA-series small-block

2536130 – 1965, 273 LA-series small-block

2566080 – 318 LA-series small-block

2780930 – 1968-1973, 340 LA-series small-block, Not T/A or AAR

2806030 – 1966-1969, 273 LA-series small-block

2806030 – 1961-1974, 318 LA-series small-block

2806130 – 1965-1969, 273 LA-series small-block

3418496 – 1971-1974, 360 LA-series small-block

3577130TA – 1970-1971, 340 LA-series small-block, T/A and AAR

3810230 – 1975-1978, 360 LA-series small-block

4104230 – 318 LA -series small-block, Race Engine

4179930 – 1975 – 1993, 360 LA-series small-block

 

[Sadie_the_66]

2536030... thank you