High everyone Just bought a 395558 2 and on the side pad driver side corner below head 36R174901 #8 on corner of head driver side.Intake #411990 485 oil filler tube #6572203.Transmission#247-1T826012 .Pad on trans says general motors hydromatic.Can some Help me id this engine and transmission.the guy i bought it from says its a 260 but internet says its 350 it has 4 barrels and blue paint its just the engine and trans dont know what vehicular it came out of came some one Help me Thank you

 

Whoa buddy! Sort of confusing. I imagine that's how thoughts jumble through my head sometimes though.

You have an Olds 350 with smog era #8 heads.

The easiest way to ID the transmission is to look at the pan and count the bolts. I bet it is a TH350 or maybe a 2004R

 

395558 2 is a typical Olds 350 engine (same casting number 68-76)
36R174901 is the VIN derivative of the car it came from ( 3-Olds, 6-1976 production, R-Arlington TX production, 174901-last 6 digits of the cars VIN)
#8 heads as Jesse indicated are smog heads consistent with a 1976 350
411990 is the engine production number
Transmission is likely a TH350
Those engines were typically painted blue in 1976 so that's normal.

 

Thank you I appreciate your response.transmission has 16 bolts and has a th200 shape pan to its weird lookin.Whats the best intake i can put on it aftermarket i have a Mt1 melling cam for it and .40 over pistons and std bearing kit fot it should i go holley or edlebrock carb and what size carb? and 1-3/4 primarys on headers ok will they fit hooker headers

 

16 bolts sounds like a 200 4R transmission. That's good as it gives almost the same 1,2,3 gearing but final drive is .67:1. Do you know what gear ratio the rear end has?
Carbs and intakes are personal preference. Lots of car folks like the Edelbrock series of intakes. You'll probably be happy with a carb that flows 700 cfm or more.