305 to 427

[80sman]

Little over a year ago I bought a 84 K10 in Vermont. It originally had a 305, someone put a 307 in and I want to put a 427 in. Truck originally had a 700r4 and I put a TH400 in. I just want to make sure that the shift linkage is all compatible. I also read that one of the heads has a different exhaust flange angle. What does everyone use for long tube headers. Looking for a ceramic coated set. Will a set for a 454 bolt on and still have the clearance?

This is my first frame off resto and first time messing with a chevy

 

[77Dmax]

Is the 427 a tall deck motor or a normal BBC? If its out of a kodiak or c60 its a tall deck. If that is the case normal 454 headers won't fit properly.

 

[Ricko1966]

Look a restored Mona Lisa and a restored Statue of liberty

You must be registered for see images attach

You must be registered for see images attach

 

[80sman]

Is the 427 a tall deck motor or a normal BBC? If its out of a kodiak or c60 its a tall deck. If that is the case normal 454 headers won't fit properly.

Im not sure, i attached some photos of it. It was my father's engine back when he used to race on dirt. I know nothing about it. I reached out to the engine builder to see if he can remember what it has for parts inside and he can't. Intake is from a marine appliance, has a reverse rotation firing order stamped on it

 

[nvrenuf]

Pic #2 appears to show a block casting number of 361959 which Mortec.com shows to be a 454.

 

[Beast496]

Do you know the cam specs? Might wanna figure that out before bolting it to the 400. don't wanna end up with too low, or too high of a stall speed in your converter. Being that you say it was a dirt track car, I'd assume it's probably built for higher rpms, instead of low rpm torque.