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Chain fence eating turbo
 
Join Date: Dec 2008
Location: Austin, TX
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Question Cylinder head to cylinder/barrel fit?

Does the head fit snugly to the cylinder/barrel or is there some looseness where the head can shift around slightly?

3.2L BTW.

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Cory - turbo'd '87 C3.2 Guards/Blk, 3.4, 7.5:1 CR, 993SS cams, Borg-Warner S366 turbo @ 1.2-1.5 bar, Treadstone full bay IC, 70mm TB, TiAL F46 WG, HKS 1 1/2" BOV, twin 044 pumps, MicroSquirt AMP'd w/GM smart coilpack, Bilstein coilovers, Tramont replica Speedlines (285's rr, 225's frt), Big Reds frt, 993 rr., tower brace, MOMO wheel
Old 04-14-2011, 06:18 AM
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abit off center
 
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Not snug, they do shift around a slight bit.
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Craig
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Twinplug, head work, case savers, rockers arms, etc.
Old 04-14-2011, 06:55 AM
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Chain fence eating turbo
 
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Thanks Craig! I thought I was hosed!

Great work on my heads!
Old 04-14-2011, 07:21 AM
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Chain fence eating turbo
 
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So, should I have the head nuts loose, install the cam housing/tower over the studs and dowels on the heads, and then snug the head nuts down before torquing?

When I was messing around and I hadn't torqued the heads down (just snug), I noticed the cam towers wouldn't easily slide over the studs. Being the heads shifted around somewhat, I figured they may not seat exactly in the exact spot needed after torquing making the towers a struggle to slde on.

Am I missing something?
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Cory - turbo'd '87 C3.2 Guards/Blk, 3.4, 7.5:1 CR, 993SS cams, Borg-Warner S366 turbo @ 1.2-1.5 bar, Treadstone full bay IC, 70mm TB, TiAL F46 WG, HKS 1 1/2" BOV, twin 044 pumps, MicroSquirt AMP'd w/GM smart coilpack, Bilstein coilovers, Tramont replica Speedlines (285's rr, 225's frt), Big Reds frt, 993 rr., tower brace, MOMO wheel
Old 04-14-2011, 10:49 AM
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abit off center
 
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Seal, bolt and torque up the heads to the cam towers then install them on the cylinders as a set and torque them down.

Work the complete set down slowly as you will have the oil return tubes in there. Go around with 5# increases or so.
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Last edited by cgarr; 04-14-2011 at 11:00 AM..
Old 04-14-2011, 10:56 AM
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Chain fence eating turbo
 
Join Date: Dec 2008
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Quote:
Originally Posted by cgarr View Post
Seal, bolt and torque up the heads to the cam towers then install them on the cylinders as a set and torque them down.

Work the complete set down slowly as you will have the oil return tubes in there. Go around with 5# increases or so.
Ah yes, I totally forgot about that method.

Thanks again!

One more question:

All my heads have the temp sensor hole/boss. I thought only 1 (#3 cylinder) out of the set does?
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Cory - turbo'd '87 C3.2 Guards/Blk, 3.4, 7.5:1 CR, 993SS cams, Borg-Warner S366 turbo @ 1.2-1.5 bar, Treadstone full bay IC, 70mm TB, TiAL F46 WG, HKS 1 1/2" BOV, twin 044 pumps, MicroSquirt AMP'd w/GM smart coilpack, Bilstein coilovers, Tramont replica Speedlines (285's rr, 225's frt), Big Reds frt, 993 rr., tower brace, MOMO wheel
Old 04-14-2011, 11:19 AM
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abit off center
 
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3.2 heads have them in all heads so you can put any head on any cylinder but I did notice that one of your heads temp port did have a plug in it for some reason...

I would guess its easier to just manufacture them all the same?
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Last edited by cgarr; 04-14-2011 at 11:46 AM..
Old 04-14-2011, 11:43 AM
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Chain fence eating turbo
 
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Ah, I see. I'm good to go then.

Thanks!

Old 04-14-2011, 11:47 AM
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