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Ryoken's 89 Crew Cab Tubebed build... aka Mutt....

Thats not far from how much I paid to do my roller cam swap on my 355. :doah: :deal:

As far as roller cam TBI motors, as it has been explained to me:
87 and up TBI motors were a crap shoot as to whether or not its a full roller, roller capable, or non roller. It all depends on year, make, model, options, and pixy dust :doah:
My 91 350 is out of a GMC 1500 and its a non roller motor.
The only way to be sure without looking is if you have a TPI from a Vette or a 96 and up Vortec or LT1/LT4.

This is what I was responding to, and I was talking about small blocks, not big blocks.

Martin
 
This is what I was responding to, and I was talking about small blocks, not big blocks.

Martin
sorry, I was floowing Ryoken's build which is a 454 89 TBI, and I missed a couple of threads. ANd since you didn't quote anything I assumed you were talking about the engine in question here in the thread.:thumb:
 
Does that stupid smiley face mean "I have no idea what I am talking about!"???

Here is a link to my post with a Quote in it.

http://coloradok5.com/forums/showpost.php?p=3118530&postcount=577

Martin
Man you have a chip on your shoulder.
No the smiley meant sorry for the confusion, and yes I see now the quote and I am an idiot, but man lighten up.
We are just filling up Paul's post with nonsense, when he already has enough stuff he's posting about, I don't think he wants us to have our discussions here, so let's end it here.
SORRY.
 
I'd still like to see the casting numbers and date on your block. I think that is an older block. I have NEVER seen a non roller block used after 1987. Some of them aren't machined for the roller, but they're cast for the roller.

Martin

I think he said it didn't have roller cam, nothing about the block not having the provision.
:thumb:

I've seen pictures of his block. I am 99% sure it is not a 1991 block.

Martin

Hey ladies settle down!

Check out my roller cam swap thread where I posted up pics of the block including the casting number which says '91.
http://coloradok5.com/forums/showthread.php?t=296309
 
Hey ladies settle down!

Check out my roller cam swap thread where I posted up pics of the block including the casting number which says '91.
http://coloradok5.com/forums/showthread.php?t=296309

I remember the thread clearly. Here is a link to your last post in that thread discussing the age of the block.

http://coloradok5.com/forums/showpost.php?p=3091774&postcount=26

You were not sure where to find the casting marks, or casting date (at the back of the block, on top of where the bell housing bolts to). You never did end up posting pictures of the casting number or casting date.

I still maintain that your block is not an OEM installed block from a 1991.

Martin
 
Either way that is all small block roller block info, that doesn't really pertain to this situation. As far as I know, NONE of the TBI 454's were roller blocks.

Martin
 
I remember the thread clearly. Here is a link to your last post in that thread discussing the age of the block.

http://coloradok5.com/forums/showpost.php?p=3091774&postcount=26

You were not sure where to find the casting marks, or casting date (at the back of the block, on top of where the bell housing bolts to). You never did end up posting pictures of the casting number or casting date.

I still maintain that your block is not an OEM installed block from a 1991.

Martin

I did find the casting numbers and I looked them up, I just forgot to post the results. It said something like truck 350 2 or 4 bolt 89-91
 
so does anyone know what the choices are for my 89 454 block and a roller retro-fit?

will that cam I listed work, or will i need machine work? like lifter bore, threaded boltholes, etc...

it should have threaded holes right down the middle for the spider cages right? think it's 4 iirc?
 
Paul an 89 block is considered a Mark IV...that cam should work fine. It says 454 up to 90. In 90 they were called a Gen V, and 96 started the Gen VI with roller blocks.
If you had a roller machined block they have a groove in the face of the block where the cam goes in, that groove is for a retainer plate to hold the cam in the block. Also had the different timing cover (cast), The Gen V has no mech fuel pump or clutch linkage provision, and non adjustable valve train. The Gen V also started the 502 engines.
Those rockers look the same as my Ultra Pro Magnums....I like em real well.
 
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yeah, I knew it was a Mark IV.... so that retro cam should use a cam button as opposed to the retainer plate right?

I'll see how she does over the next couple months probably before I decide on that avenue...

sunday will be her first semi-long roadtrip... saturday gonna be a frantic dungeon day! :haha:
 
apparently their is no upgrade to the stock timing cover on the Mark IV...
 
yeah, I knew it was a Mark IV.... so that retro cam should use a cam button as opposed to the retainer plate right?

I'll see how she does over the next couple months probably before I decide on that avenue...

sunday will be her first semi-long roadtrip... saturday gonna be a frantic dungeon day! :haha:

Correct on the cam button, and I would use a thrust washer too.
I've heard a lot of people dimple the steel cover with a hammer to set the endplay on the cam, and have no problems doing so on a street or mild strip engine.
 
apparently their is no upgrade to the stock timing cover on the Mark IV...

I got a cast cover for mine in the Maiden...:waytogo:

HPIM1786.jpg
 
the only cast alum covers i see listed are for gen 5 and 6...


http://www.summitracing.com/search/...ine-Size/7-4L-454/?keyword=timing+chain+cover


no big... stock should be fine in this... the one i need to research is how anemic the factory heads are compared to aftermarket iron...

iirc, there are coolant passage issues when mixing gen's on the BB heads..

I'm leaning towards just a freshen up of the seats, the comp cam springs in the kit, full rollers, head gaskets, fresh chain, the MSD dizzy, etc....
 
This in the Jegs catalog:


Aluminum Timing Cover 1964-90 Big Block
CNC Machined Finish
Chevy Big Block - Mark IV
697-14855
69714855.jpg

right on the diff Gen heads...I believe there is plenty of info out there to swap a Gen V or VI on the Mark IV, it involves a couple holes drilled for coolant, and some special head gaskets I think.
 
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