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  #16 (permalink)  
Old 10-08-2012, 08:48 AM
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Quote:
Originally Posted by LATECH View Post
Use the 350 block
Use the #94 heads
Use the 10/10 crank
Use the bearings you have too
Use the 76 intake you have , just need the 72-79 intake set for it to work. Use a 1972 up gasket set for the assembly.
You also have timing set , use that
The cam you listed 198/212 @.050 is an ok choice for a close to stock setup
About the only thing I dont see is an oil pump and gasket set. That shouldnt run more than about 200 bucks . That will give you a running engine.USE A STOCK Pressure Oil pump, not high volume/high pressure.
Do you have timing cover and balancer/pulleys and engine brackets?
Is the intake a 2 barrel?
i already bought a gasket kit when i got the car and the 350 did come with an oil pump. i've got a couple of timing covers (2 455's to rob of parts).
i'm transferring as much as possible from the 70 455 to the 350. i still have hopes of building the 76 455 if the block checks out.
now, in alabama we pretty much don't get cold weather. i think i want to completely block the exhaust crossovers.
will the stainless steel plates do the job? will i suffer exhaust leaks since my heads have the 4 bolt hole pattern? will shimming the center of the head make it more of a possibility? because it seems like that's basically what i'd be doing
does the "shoving tinfoil down the port" trick work or is it a recipe for disaster? i'm mostly interested in this because it supposedly improves the exhaust note. i'm not expecting a lot of gains from it.
will the 670 cfm carb be too much for this engine?

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  #17 (permalink)  
Old 10-08-2012, 12:11 PM
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i've got to get more sleep. the crossover and the manifolds are two different problems all together. i'm not thinking straight.
i just checked and the '76 intake and the '71 heads actually have the same ports i'm guessing my '71 350 is actually a '72 350 that was cast in '71.
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  #18 (permalink)  
Old 10-08-2012, 03:46 PM
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I wouldnt be shovin tin foil in there. You can completely remove the crossover part of the manifold, almost surgically if you will, and make some 1/4 inch or 3/8 plates to cover the ports in that area. If i have a pic of one done that way I will post it so you can see. It will make better sense that way.
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Old 10-08-2012, 03:53 PM
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This link at wallace may help.
Exhaust Crossover Comparison - Wallace Racing
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Old 10-08-2012, 04:02 PM
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This is a photo of a "divorced " crossover from a ram air 3 I think.
The reason I posted it is so that you can see what needs to be cut off your intake.
On your intake, the crossover is actually part of the casting of the whole intake.The view of the one in the picture is the "shared" section of your intake.Take a goos look at it, you will see how it is made. Just cut that part off of your intake, and make a pair of plates as thick as your intake bolt flanges, and stick them over the heat riser ports in the heads, then bolt it all down.
I saw one on E bay a while back a guy had cut, he did a nice job, had plates with it too. The picture would have been a great example to show you, but it has been sold, and I didnt save a pic of it. (wish I had)
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  #21 (permalink)  
Old 10-08-2012, 04:08 PM
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These pics may give you a better idea of what I am trying to say. Sometimes I just cant describe stuff well enough for it to make sense.
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Old 10-08-2012, 05:47 PM
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well, since the ports match even though they shouldn't i'm not going to worry about blocking them for now.
i saw one that someone had cut on another forum. it looked good.
my plan is still to eventually build a big cube engine, so i'm trying to make myself lighten up on this build a little.
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Old 10-12-2012, 08:56 AM
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went ahead and bought a performer. i would have always been second guessing myself if i had gone with either of my other options.
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Old 10-12-2012, 04:16 PM
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Cool.
Tomorrow I am going to pickup a 400 481988 casting on the block.
Its complete carb to pan. water pump to tailshaft on the trans.( It comes with a t 400 )
I will be stashing the T 400 for now. The block is going off to the mnachine shop for hot tank, magnaflux and sonic testing. Then its going in a bag after it gets oiled down.
Never hurts to have a spare. Eventually I will build a 462 out of it.I still have my 389/400 build this winter.
I needed th quadrajet intake and carb. Plus it has A/C hanging off of it and a starter too. Lots of goodies there.
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Old 10-12-2012, 05:32 PM
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the a/c stuff is a good score. i'll be looking for a compressor next summer.
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Old 10-12-2012, 05:59 PM
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My cousin has a 69 firebird also. I am hookin him up with the AC pump and brackets. My 64 is a non AC car. Doesnt get real hot here in Pa. so dont need AC. It would be nice to have , but I am not gonna go all out and put AC on it. His bird had AC from the factory, and the pump and brackets are MIA.
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Old 10-12-2012, 09:08 PM
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yeah, it's only going to get up to 80 down here tomorrow. there's a cold front coming in next week and we'll have highs in the 70's. we get maybe 4 or 5 weeks of cold weather most years. we get about 9 months of summer, though. mine still has most everything but the compressor. i'm not going to put a/c in until i drop a bigger motor in.
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Old 10-18-2012, 05:26 PM
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Bumping this up front for beertracker.
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Old 10-18-2012, 06:08 PM
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I got a few real good peices of advice when i built my first pontiac 455 ho. First of all dont even think of building one.

Before i go further i want to say i love pontiac. If i had a good block i would put on in my c4 vette just to be wierd.So as you can imagine i did not take this good advice. Hell my 71 grand prix sj had its own website. It did work out big cubes it was fast as hell. I cant tell you how many people were suprised to see that 4000+ gp jump up and leave them stand still in a cloud of tire smoke at 50 mph.

Deliver pizzas until you can buy one turn key from butler. You will save thousands and end up with more power on pump gas friendly engine you will love everytime you drive the car.

Butler Performance - Specializing in Pontiac Engines Heads and Performance Parts

You can build a big chevy for 3k less. Nothing to sneeze at. And it will make more hp.

For the cash i spent at the machine shop and parts i could of had any corvette engine low miles ready to swap. It really is LS-whatever.

A gen one small block twin turbo setup with everything forged and computer controled. In the 1000 hp range is not out of the question. If you going to pay 7 k for a dirty block and a box of parts you can do anything you could imagine with a sbc.

That being said i know nothing about the 350 sep the 400 is more common and easy to lay your hands on. Hope you get it going. best way to build 455 is get parts for next to nothing from friends and the net over a few years when you can wait for the right deal to come along. They are out there just never when you need it.

Sorry for posting usless info that is not really related to your post. Just dont want to see anyone go down the same road i did. Butler rules... I talked to him before my build hes the one that gave me the advice.
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Old 10-20-2012, 12:06 PM
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Quote:
Originally Posted by hcompton View Post
I got a few real good peices of advice when i built my first pontiac 455 ho. First of all dont even think of building one.

Before i go further i want to say i love pontiac. If i had a good block i would put on in my c4 vette just to be wierd.So as you can imagine i did not take this good advice. Hell my 71 grand prix sj had its own website. It did work out big cubes it was fast as hell. I cant tell you how many people were suprised to see that 4000+ gp jump up and leave them stand still in a cloud of tire smoke at 50 mph.

Deliver pizzas until you can buy one turn key from butler. You will save thousands and end up with more power on pump gas friendly engine you will love everytime you drive the car.

Butler Performance - Specializing in Pontiac Engines Heads and Performance Parts

You can build a big chevy for 3k less. Nothing to sneeze at. And it will make more hp.

For the cash i spent at the machine shop and parts i could of had any corvette engine low miles ready to swap. It really is LS-whatever.

A gen one small block twin turbo setup with everything forged and computer controled. In the 1000 hp range is not out of the question. If you going to pay 7 k for a dirty block and a box of parts you can do anything you could imagine with a sbc.

That being said i know nothing about the 350 sep the 400 is more common and easy to lay your hands on. Hope you get it going. best way to build 455 is get parts for next to nothing from friends and the net over a few years when you can wait for the right deal to come along. They are out there just never when you need it.

Sorry for posting usless info that is not really related to your post. Just dont want to see anyone go down the same road i did. Butler rules... I talked to him before my build hes the one that gave me the advice.
i should have the 350 up in a few weeks. unless i luck into a good 455 block i'm more likely going to use the 64 heads on a 400 and call it a day. if the 350 doesn't absolutely make me want to throw rocks at this car it may be years before i even bother with that. i'm not planning on going to the track or racing tennagers at redlights. i may find the 350 is all i really need. honestly, i traded the torino for it less than a month after i got it running. if i get this car going and somebody comes along with a finished mopar, or the right chevelle or whatever i decide i'm in the mood for this thing may end up gone that fast too. this is the result of a bunch of trades that started with a '67 c-10. the money has slowly added up but this car has upgraded suspension, you could eat off of almost any surface on the car and the interior is in 85% plus condition. the next step will be something barrett jackson finish quality but non-matching numbers.
anyway, deer season opened here today so i'll be focused on that for the next month or two. and i need to start throwing money at barns and fences after that.
chances are that i'll drive the car with the 350 and be happy for a few years.
no information is useless.
thanks
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