when i bought the car the previous owner said he changed the motor from another trans am and i dont think its a 86 lg4 but i think its a slow 82 trans am engine....i no its a trans am motor cuz its got the ****ty quadrajet and it had all the emissions and its a 305 4bbl but where on the engine can i make sure of this

 

On the pad in the block at the front of the passenger side head (usually behind the alternator), you'll find some numbers stamped in the pad. They're normally hard to read because they're full of oil, grease, dirt, paint. The numbers are specific to that block. There will be 2 rows with numbers and letters. The first row is build date and suffix code which will tell you what kind of car the engine was in and when it was built. The second row is the last part of the original vehicle's vin number.

Get those numbers and I'll tell you about your engine.

 

k thanks ill have them soon

 

The casting date of the block can also be read from the markings on the back of the block.

 

i read the number close to the valve covers then the number closer to the altinator (V0816cdf/1fr100432)wut will this tell me the year and horse power

 

Those are good

1FR100432 is the last part of the vehicles VIN number. If it doesn't match your car, the engine isn't original

V081CDF

V = Flint engine plant
081 = There's a digit missing. The first 2 digits are the month. The next 2 digits are the date
CFD = 1985 305 Roch E4ME 4bbl carb. LG4 150hp. Found in B F G body cars

Looks like the engine is a 1985 LG4 305 with a 4bbl carb rated at 150hp or at least that's what the block originally was.

 

thanks man it was missing a 6 and it was deff changed

 

wuts good about those engines and wut does Roch E4ME stand 4

also i thought it was a 82 engine cuz it has a 82 steering colum and the air compressor when i went to the store is to a 82-84 trans am and the 85-92 are totally differnt and if its a 82 -85 is it computer controlled or vaccum

 

heres a pic of the clutch i have pre 82-84



and heres the the 1 to the 85-92 cars

 

A Rochester E4ME is a 4 barrel computer controlled carburetor with electric choke. Standard equipment on LG4's and L69s.

 

got carried away in my reply, delete thanks

 

the guy had the other car on the lot but i didnt no wut year it was cuz it had no nose or taillights so i couldnt tell and i didnt bother 2 ask cuz i didnt really care ant the time and if i still lived in NY then i would ask him and the 82 only got 145hp and the 86 has 165hp....also i have a 82 steering colum and wheel and my a/c compressor is like the 1 above so put it together i got the steering colum and wheel and the a/c compressor...maybe thats y i thought it was a 82