C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Help 113 install question on an 85

Thread Tools
 
Search this Thread
 
Old Jul 3, 2006 | 04:10 PM
  #1  
85C4fanatic's Avatar
85C4fanatic
Thread Starter
Racer
 
Joined: Jun 2005
Posts: 416
Likes: 0
From: Gansevoort NY
Default Help 113 install question on an 85

Ok I have prep everything and I am ready to put the heads on. Problem is one of the heads has an alignment pin in it and the hole it matches up to on the block also has a pin in it. I looked at the other 113 head and it doesnt have any pins in it. What's wrong? How do I get around this?
Reply
Old Jul 3, 2006 | 04:33 PM
  #2  
ALLT4's Avatar
ALLT4
Melting Slicks
15 Year Member
 
Joined: Dec 2004
Posts: 2,137
Likes: 5
From: Howard PA
Default

Ran into the exact same problem a few months ago. In a pinch (and this is some real backyard engineering) I took an old pushrod, put it in a vise lengthwise and cut a slit in it, faily long, I needed two pins.

Then I cut two sections out about the right length. Rounded the edges with a grinder and tapped them in the block. They worked like a roll pin better than stock I thought because they had some spring fit, not just a slip fit.

Are you sure the alignment pins aren't stuck in the block already, dumb question I know.

Edit: re-read your post, you need one pin at each corner. Pull the ones that are doubled up and use them on the other side.

Last edited by ALLT4; Jul 3, 2006 at 04:35 PM.
Reply
Old Jul 3, 2006 | 05:25 PM
  #3  
85C4fanatic's Avatar
85C4fanatic
Thread Starter
Racer
 
Joined: Jun 2005
Posts: 416
Likes: 0
From: Gansevoort NY
Default

Yeah in my case I have to opposing pins. One in the block and the same in the heads. What is the best way of removing one of them?
Reply
Old Jul 3, 2006 | 06:17 PM
  #4  
SunCr's Avatar
SunCr
Le Mans Master
10 Year Member
 
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
Default

The locating Dowel Pins - if that's what you're talking about - go in the block and then the head gasket is centered over them and the head plops on top of that. They do sometimes pull out with the head when you remove the heads, but they belong in the block for installation. You can pick them up anywhere for about 50 cents a pop.
Reply
Old Jul 3, 2006 | 06:24 PM
  #5  
ALLT4's Avatar
ALLT4
Melting Slicks
15 Year Member
 
Joined: Dec 2004
Posts: 2,137
Likes: 5
From: Howard PA
Default

I have some other dumb questions. Are these new, used, or your old heads. Why won't they just go back on respective to the way you took them off.

In any case the dowel pins can be a bitch' to get out. Normally I'll use some large side cutters to get a grip, laying the curved part of the cutters on the flat (head or deck depending on what I'm trying to accomplish) then grab the dam thing with a much strength as I can muster and push down thereby creating a lever with the side cutters to pull it up. Hard to explain and it takes the right kind of side cutters.

If that dosen't work you can try to make some shallow slots in them on the sides so your cutters have a better grip. Then try again. You almost need a cutoff wheel on a grinder though as those pins are hard.

Something like these...

Yeah, all four belong in the block so take them out of the heads.


Last edited by ALLT4; Jul 3, 2006 at 06:26 PM.
Reply
Old Jul 3, 2006 | 06:59 PM
  #6  
85C4fanatic's Avatar
85C4fanatic
Thread Starter
Racer
 
Joined: Jun 2005
Posts: 416
Likes: 0
From: Gansevoort NY
Default

These heads 113's came from a different engine. All my alignment pins are still in the block.But one of the 113's has a pin in it. I guess I'll use a cut off wheel and clean the hole with a carbide bit. I understand your cutter explaination but I have tired everything short of my cut off.
Reply
Old Jul 4, 2006 | 02:03 PM
  #7  
SunCr's Avatar
SunCr
Le Mans Master
10 Year Member
 
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
Default

I just take them to a NAPA with a machine shop and let them yank them out - Mangle the head surface and you'll ruin them.
Reply
Old Jul 4, 2006 | 09:54 PM
  #8  
85C4fanatic's Avatar
85C4fanatic
Thread Starter
Racer
 
Joined: Jun 2005
Posts: 416
Likes: 0
From: Gansevoort NY
Default

Originally Posted by ALLT4
I have some other dumb questions. Are these new, used, or your old heads. Why won't they just go back on respective to the way you took them off.

In any case the dowel pins can be a bitch' to get out. Normally I'll use some large side cutters to get a grip, laying the curved part of the cutters on the flat (head or deck depending on what I'm trying to accomplish) then grab the dam thing with a much strength as I can muster and push down thereby creating a lever with the side cutters to pull it up. Hard to explain and it takes the right kind of side cutters.

If that dosen't work you can try to make some shallow slots in them on the sides so your cutters have a better grip. Then try again. You almost need a cutoff wheel on a grinder though as those pins are hard.

Something like these...

Yeah, all four belong in the block so take them out of the heads.

This worked great. I put some PB blaster on it and let it set. Then just grabbed it and it came out with a little effort.
Reply

Get notified of new replies

To Help 113 install question on an 85

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo




All times are GMT -4. The time now is 04:33 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE