427 SBF

Steve439 said:
I think oil is better on the lobes.

Let's hear some other opinions...
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That's what I previously heard also. But 9 out of 10 videos just show them using assembly lube.
 
As a follow up to the dowel question, use the dowel hole that, when facing up, has the first lobe at the 9o'clock position.

Some guys run dual dowel pins, but most people have not seen one shear off anyway, and my timing set does not have provisions for both.

I was also told there no reason to use an eccentric so leave it off and use whichever dowel fits tighter in the hole.

So I have the longer one in the freezer at the moment
 
Well I fucked up and mushroomed the dowel for the cam. Throwing in the towel for the day. That fucker isn't moving in or coming back out.

I put the dowel in the freezer hoping it would go in easier. Guess not.
 
The best news of the day, is since I'm not using the eccentric, I put the wrong dowel in. I was supposed to use the short one (1.125"), so I'll be able to wrap up the cam, cut the mushroom off and continue onward

Fuckin idiot
 
89 Fox 427 said:
The best news of the day, is since I'm not using the eccentric, I put the wrong dowel in. I was supposed to use the short one (1.125"), so I'll be able to wrap up the cam, cut the mushroom off and continue onward

Fuckin idiot
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Booooooooo.................. :)

The trials and tribulations of building shyt, welcome to the club! Don't sweat it, take it out some or all the way, wrap it up, file down the end and make sure the cam sprocket slides onto it.

I use the Royal Purple assembly lube also. Not sure how much of it actually stays on the surfaces but I also have never had an issue with anything I put together using it.
 
Mike Beck said:
Booooooooo.................. :)

The trials and tribulations of building shyt, welcome to the club! Don't sweat it, take it out some or all the way, wrap it up, file down the end and make sure the cam sprocket slides onto it.

I use the Royal Purple assembly lube also. Not sure how much of it actually stays on the surfaces but I also have never had an issue with anything I put together using it.
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That’s what I told him. Stop being so hard on yourself. A lot of learning going on today and you will be better for it.

I’m just glad it’s moving forward. It’s all coming together. 😎
 
I try to figure out a way to press everything together.
I don't trust myself hammering on stuff.
 
Updated cam info (yet to be verified)

Intake
Opens 10.5 BTDC
Closes 52.5 ABDC

Exhaust
Opens 62.5 BBDC
Closes 12.5 ATDC

Overlap : 23
 
Why do you need to install the pin? I have never had to do that, but I have always been a SBC guy.
 
89 Fox 427 said:
20250608_111824.jpg
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Side note. I’m an acquaintance to one of the heirs of Cloyes. He lives in a suburban… poor life choices..
 
Mike Beck said:
Why do you need to install the pin? I have never had to do that, but I have always been a SBC guy.
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Chevy makes so much power you need a bunch of bolts to keep it together

That pin is what locks the sprocket to the cam
 
Pro tip, when you need to put a dowell in, don't beat directly on the dowell. I always use a short piece of steel or a punch, won't mushroom that way. I've got a short piece of work hardened brass I use at work. And just an FYI, some of the dowell holes on my Dart block where way undersize. As if they they where leaving the final sizing to the end user or something. The holes for my timing cover where .245, you will never get a .2502 dowell in a .245 hole. The dowell holes for the heads and transmission where way undersize too. Just something to check before you go hammering dowells in.
 
Boosted Bullet said:
Pro tip, when you need to put a dowell in, don't beat directly on the dowell. I always use a short piece of steel or a punch, won't mushroom that way. I've got a short piece of work hardened brass I use at work. And just an FYI, some of the dowell holes on my Dart block where way undersize. As if they they where leaving the final sizing to the end user or something. The holes for my timing cover where .245, you will never get a .2502 dowell in a .245 hole. The dowell holes for the heads and transmission where way undersize too. Just something to check before you go hammering dowells in.
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👍
Every cam dowel I've tried to piss with had too much press
 
Meanwhile the dowel isn't doing the "work". Without the bolt tight that dowel will snap like a 200 year old pine twig with any spring pressure if you try to rotate the assembly
 
BOSS#1540 said:
Meanwhile the dowel isn't doing the "work". Without the bolt tight that dowel will snap like a 200 year old pine twig with any spring pressure if you try to rotate the assembly
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That's good info. My dumb ass would have done something like that
 
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