I've searched for posts but couldn't find any. If you know of any please let me know.

I am wanting to remove the 2.8 and swap it out for a 327 HO Double Hump heads. What will I need to do? Can I use the oil sender and temp send out of the v6 and put them in the 327 so I can use the factory guages? Thanks

 

There was never a 327 "HO". Or a 327 "police interceptor", or a 327 "Vortec"... not even "early Vortec". So, it would be a good idea to drop the buzzword from your description, as it communicates nothing whatsoever.

And, anything you run across today, even if there had been such a thing as a "327 HO", bears little to no resemblance to whatever it was when it started out its life as anyway; and so, probably wouldn't be recognizable as whatever a "327 HO" would have been if there had been one.

Apart from all that, a 327 is a small block. Same as a 302, 305, 350, or even a 400. So it will drop right into one of these cars, no compatibility issues whatsoever, as long as all the right V8 stuff is used along with it.

If the heads have the bolt holes in the ends of them, then you'll even be able to install accessories on the motor; little things like an alternator for example. If they don't have the bolt holes, I wouldn't recommend bothering with it. I'd suspect that's one of the reasons why this motor is even available to you in the first place; the heads don't have the bolt holes, so it won't work in any car newer than about 69 or 70, so it's useless to its current owner. As it will be useless to you.

Also, it's not likely that the block has the right starter bolt hole for the manual transmission in these cars, so if you're planning on using a T-5, you'd need to add that to the block.... preferably BEFORE installing it in the car.

The bolt holes in the heads are the make-or-break issue.

 

WOW! Arent you mister know it all!!! I asked for some help not a school lesson. I was told that was what the motor is. It came with factory double humped heads and that's why he called it HO. Wether that's true or not is irrelivant.

The motor came out of my 56 chevy. I have it laying around and wanted to put it in something. Now I have a 88 camaro and would probably like to put it in it. I'm not looking to make this look factory anyway so the motor is not useless.

 

I've been watching sofa's responses for awhile now, and I need to defer to his knowledge base on a regular basis. His response was not intended to be a put-down, but a dispeller of common misconceptions. The use of "HO" is one of the most common, and since the factory defined its use, it wasn't misguided to set the record straight. However, understanding exactly what you've got to work with is important (double-humps straddled the types sofa described).

I'm using a V6 cluster in my V8 car. It required a V8 circuit board for the tach and a 0-80 sending unit for the oil pressure. The temp sender was a regular V8 sender - however, older SBC heads didn't have the tapped hole for them.

I don't have a clue if the V6 units would fit on the V8 engine - I didn't have the V6 engine any longer when I did the V6 cluster. I don't see any reason not to just get the V8 pieces.

 

Thanks I understand that. Other than motor mounts, new exhaust, cut drive line and some other odds and ends I should be albe to drop this v8 into her? I've got a source on a v8 cluster so I'm good there.

 

Shouldn't be any need to cut the driveline, unless you're going from an '82/'83 short transmission with long driveshaft to a later long transmission which uses a shorter driveshaft. In fact, short driveshafts are very common, whereas longer driveshafts are desired for TH350/TH400 (and some 4-speed) swaps, and selling the long driveshaft would be appreciated by those doing such a swap.

(It isn't clear from what you've said so far exactly what you've got and what you're going to.)

 

a turbo 350 is going in also. the v6 tranny won't bolt up to a v8

 

Well I guess I'll step in here not that I like to do it but just because I can.

There are quite a few factory HO 327's the problem is they are listed old school, "327-300 hp" "327-350 hp" ect.

I suggest you use the V8 cluster and work from there, the true double hump heads wont have the holes for your PS, ALT, AC brackets unless they are the very late double hump heads so you may consider selling them to to someone who is restoring somthing from that era.

 

I apologize if I offended you by stating facts. Seems alot of people don't like reality too much. Reality doesn't seem to care much though, it just goes right on being what it is.

There are no 327 "HO"s. There are 327s whose output might be higher than others; just like there are some 350s, and 6-cylinders, and Honduh motors that have higher output than some others. Doesn't mean that they are therefore proper to apply by the buzzword "HO" to.

It really doesn't matter too much what the motor "came out" of, in the sense that it was last in a whatever. No 327s came in 56 Chevys anyway, as the 327 wasn't introduced until the 60s. So the fact that it was last in a 56, won't really have much influence on whether it will work in one of these cars. Like I said, the mainmost thing you need to check out, is whether the heads have the bolt holes in the ends.

Here's what to look for. The ones on top are double-hump heads that WON'T work; 461 casting (the old 327 fuelie heads). The bottom ones are double-humps that WILL work; 186 casting (69-70 302 & 350).

 

Sofa, whatever. I don't need a lesson on what motor came in a 56 chevy. i know what motors were in this year of car. I'm no idiot when it comes to cars, so when someone has a question, just answer that question and leave the other stuff alone. Let that person live in la la land if they want to.
oh, I have the bottom DH heads. So it just might work in my car.

 

Too many mistakes have been avoided by people like sofa reading between the lines for me to go along with that suggestion.

Your case may be different, but you'll have to admit, with 7 posts, it's a little hard for us to know you well enough to not take a shot.

Most of this thread involves the fairly standard V6 to V8 swap, for which the sticky at the top of this forum covers the majority. The specific part (DH heads) has been answered.

 

I guess If I would have looked a little closer we wouldn't be having this little spat now would we? I'm truely a laid back guy but sofa just struck a wrong cord with me.
Thanks guys for your help.

 

I don't intend to come across like a jerk; I just can't help it. It's so natural to me. If you ever want your wrong chord struck again, I'll be happy to help out.

So yeah, if your heads have the bolt holes, you should be able to use it in one of these cars. That's the one and only thing that matters. Whether it's a 327 or a 302 or a 350 or a 283, or a "HO", or has been hanging out in a 56 of late, is all irrelevant and unnecessary to be concerned about; and putting all of that uselessness in your post was what sent it on its left turn down the dirt road. All you need to know is, small block with bolt holes in the heads or not.

Like I said also, if you intend to use it with the 12.8" flywheel or flex plate, be sure the block has the right bolt pattern in it (which it almost certainly doesn't....) and get it drilled BEFORE you drop it in if it doesn't have it. One hole was added in the late 70s. There is NO ALTERNATIVE to having the right hole. I'd recommend dummying it all up on the stand to make sure; the exact flywheel or flex plate you're going to use, and the exact starter. Bolt it up and see. Don't take anything for granted.

 

It's all water under the bridge.

 

Glad to see you could kiss and make up. . .

 

I don't understand why everyone is so terrified of old heads without the accessory bolt holes. There are plenty of brackets available to hang all the accessories you want off an engine without using those holes.

 

Because were all cheap SOB's who like to use what we have and dont like to add lead subsitute to our gas.

 

You can get around that, and everything else. After you pay all the money to do so, you will find out that you could have had a real nice set of aftermarket heads for the same, or less money.