What do you know about 427's?

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11-04-2005, 06:36 PM
Littleport22

What do you know about 427's?

I finally ID'ed my engine and it turns out to be a 427 Chevy Tall Block. I found a lot of stuff at www.MORTEC.com but not as much as I might like to know. Here's what I have:

Block: 473478 (427 Tall Block - 4 Bolt Main)
Casting Date: K 1 78 (November 1, 1978 (the 8 is fuzzy))
Next to casting date: Marine GM8
Inside the BellHousing: Drivers side - "F" Passengers - "TRUCK"
Drivers Side over oil filter housing: Truck 7 (Upside-Down)

Head Casting Number: 343772 (427 heads)
Inside, Top, Front of head: 26 74
Behind that: GM4T
Behind that: GMC

How good is this engine? What are it's weaknesses? Can anyone tell me what vehicle this came out of? Thanks!
11-04-2005, 06:48 PM
Swifster

Most likely a C-60 or C-70 Medium Duty truck
11-04-2005, 08:10 PM
pat mccarthy

Re: What do you know about 427's?

Quote:

Originally posted by Littleport22
I finally ID'ed my engine and it turns out to be a 427 Chevy Tall Block. I found a lot of stuff at www.MORTEC.com but not as much as I might like to know. Here's what I have:

Block: 473478 (427 Tall Block - 4 Bolt Main)
Casting Date: K 1 78 (November 1, 1978 (the 8 is fuzzy))
Next to casting date: Marine GM8
Inside the BellHousing: Drivers side - "F" Passengers - "TRUCK"
Drivers Side over oil filter housing: Truck 7 (Upside-Down)

Head Casting Number: 343772 (427 heads)
Inside, Top, Front of head: 26 74
Behind that: GM4T
Behind that: GMC

How good is this engine? What are it's weaknesses? Can anyone tell me what vehicle this came out of? Thanks!

weakness there is none the block can take a lot of hp . but they do not fit good in to a lot of cars and take a lot of work and money but you can get 525 cid out of them the engine may came out of a dump truck or some thing like that
11-04-2005, 08:58 PM
Littleport22

It's going into a 41 ford Pickup like the one in my avatar. Tons of vertical space under the hood and because it's a rod, I don't mind chopping up the inner fender wells if I have to. I could have some manufactured, but I don't think I'll need to. These old trucks are pretty roomy.
11-04-2005, 09:01 PM
Littleport22

Does the "Marine GM8" stamp mean it came out of some kind of boat at all? Or is that a standard stamp?
11-06-2005, 02:43 PM
pat mccarthy

i have never see one in a boat. but i did here they did. but not s%100 shure. if you can make it fit go for it. there is some old post on tall deck that may help .or you can ask me i have bulit some tall decks:whacked: