hey, my dad has an older 350 out of his chevelle, its got about 100,000 miles on it. i might get it rebuilt and swap it in my iroc which has the lg4 in it. im just wondering if this is possible to do, and if it is will i need to do anything special to swap it.

 

do a this has been covered hundreds upon hundreds of times

 

sorry dude, i looked through the 2 current pages, i didnt realize there was an archive of stuff. (newbie mistake)

 

lol thats cool we were all new on here at one time

 

'70 Chevelle SS never had a 350. Never had any small block for that matter.
The SS that year only got either the 396 (402") or the 454.

'Course a 350 could have been swapped in at some point.

 

i'll have to ask my dad, its either swapped from his old camaro, or its the 396. actually its possible it was just pulled from the camaro and has been sitting.

 

ok i did a search and found some stuff but it was pretty vague and im not 100% sure. what i gathered is i will need to bend the dipstick and get a new flexplate since my car is an 86, other then that it should bolt up all good. also i read how some of the 70s heads are crap, these are 69 so they should be ok correct?

 

okay you probably will want to use a different dipstick all together first off...

second ...you will need a different flexplate

third... the starter might be an issue you need to see if the block you are getting has two or three holes for the starter to work .....

fourth ...you need to post the block casting #'s ...and the head casting #'s or write them down and check out
www.moretec.com and see what you actually have there you really dont know what you have until you run the numbers on them they could be some really good heads or they could be some really good boat anchors....

as far as the accessories they should all bolt up just fine as long as the heads have the accessory holes in them ...

if your planning on running stock exhaust manifolds you need to make sure that the manifolds and heads will work because on our old 84 z28 we had we installed an early 70's set of heads on it and the manifolds on the back exhuast port wouldnt bolt up due to the difference in the bolt locations
which isnt that bad then you can get some headers...lol

 

If you are using stock manifolds (3rdgen stock, not Chevelle stock) then you can use the original dipstick, but only if you bend the tube to follow the head closely. It will fit between the head and manifold.

Would work much better if you just got headers though. Then you don't have to do any bending.

 

thanx for the responses, i'll go look at the casting numbers tomorrow and post them and do a check and whatnot, thanx again.

 

I didn't do the work, but I know it's possible. My 82 originally had a v6, but it's now sporting a 70 Chevelle 350.

My Engine Bay

 

it doesnt matter what year 350 chevy you put in it or what it came out of ....it will fit you just will need to get the correct peices to make it bolt up ....a 350 is a 350 ..block wise ...the only difference is the rear seal "one peice or two peice " that makes a difference in the flexplate .....
then the heads have to have accessory holes in them other than that youll be okay just buy headers and youll be fine

 

Yes, a 350 is a 350... they are all externally the same, except for the 1-peice and 2-peice seal blocks. They are the exception.

Some also have different dipstick locations as well. Some blocks have the spot on the drivers side (up to '79), some on the passenger side (80+). Some even have the holes in both spots (usually crate engine blocks)

 

the only numbers i came up with off the block were 010 020 and g39, im not sure if those are the right numbers. and about the heads my dad has about 4 sets so im pretty sure atleast one of them will be good.

 

The block casting number is located in the bellhousing area, top driver's side.

 

Look here to find out where to look: http://www.mortec.com/location.htm

Also get the head casting #.

 

these are two of the heads
3932441X...69-70...350/400......80cc chambers
333882.....74-80...350/400......76cc chambers

and i got 3951 off the block

 

Somebody's pulled a real bonehead there - horrible mix.

Is that the beginning of the casting number? There should be some more digits there. But, that's the beginning of 3 different 400 blocks. It's typically the last 3 digits that are the most important.

 

those are two sets of heads, not just two heads

under those digits was gm203 thats all there was

 

Ah, gotcha.

Forget the 882's. No need for any discussion there.

The heads are off the block, right? Measure the bore. How many freezeplugs are there on each side of the block?

 

excuse my lack of knowledge, im still a beginner with cars. what are freezeplugs. and im 95% sure the heads are off the engine because we have 3 other engines and the other two still have the heads on them.

 

Freeze plugs are the little brass 'caps' stuck in the side of the block. They are called freeze plugs because if the water in the block freezes, the hope is that it will push out the freeze plug instead of cracking the block.

But anyway, they are little brass caps in the sides of the block, prolly 2" diameter and cup-shaped.

 

They are really casting plugs. The factory closes them off with stamped steel plugs. When an engine is rebuilt, the preference is to replace them with brass plugs.

They really don't have a snowball's chance of "saving" the engine in a freeze situation. But, they may pop out if the water freezes.

It's one of those "motorhead" terms that has stuck, even though it isn't accurate.

 

yeah they dont really help in a freeze situation ....LOL

ive only seen it once when one did actually push out and keep the block from cracking when it froze up on a guy .....but it did however break a water jacket in the head when it happened...

 

I've gotten ahold of two SBC's that had cracks in the lifter valley due to freezing.

For the record, they were cracked when I got them. I am not the one who let them freeze, and I'm just speculating that they were cracked by being allowed to freeze. Both were rebuilt before I got them as well. Go figure.

 

there is one on each side

 

Well, that's not good news. The correct answer was either two, or three...

For reference, http://www.sdpc2000.com/images/produ...23_3427504.jpg

The brass-colored things on the side of the block. Also have them on the front on each side (maybe that's what you meant).

 

my bad there is 2 on each side, im just a moron sometimes, haha. that block looks exactly like the one downstairs.

 

Only reason for asking is the early 400 blocks had 3.

Measure the bore if you can. 4.00" = 350, 4.125" = 400.