Forced Induction Superchargers | Turbochargers | Intercoolers

Question about Milled heads?

Thread Tools
 
Search this Thread
 
Old May 30, 2007 | 05:21 PM
  #1  
KWIKKAR's Avatar
Thread Starter
TECH Apprentice
iTrader: (15)
 
Joined: Apr 2007
Posts: 351
Likes: 0
From: Fort Worth, TX
Default Question about Milled heads?

just bought a set of 317 heads but there milled .0015 what will that do to my compression ratio. Also what thickness heads gaskets should I buy, to either lower the comp more or make it even from the milled heads. Thanks
Going on a 346 Twin Turbo car with a 600ish lift cam.
Reply
Old May 30, 2007 | 05:29 PM
  #2  
ss53mech's Avatar
Teching In
 
Joined: May 2007
Posts: 34
Likes: 0
From: J-actionville
Default

I am not sure but I am guessing that your heads were milled .015 not .0015. that would be like wiping the entire head with a piece of sandpaper once. The gaskets for a .015 mill could make up the difference but what is the chamber size on the heads? You are probably going to find that .015 won't make more that .05 to .1 compression ratio difference once you do the math.
Reply
Old May 30, 2007 | 10:00 PM
  #3  
KWIKKAR's Avatar
Thread Starter
TECH Apprentice
iTrader: (15)
 
Joined: Apr 2007
Posts: 351
Likes: 0
From: Fort Worth, TX
Default

well the guy said he just had the heads cleaned up and checked out. And he wrote .0015 so I'm not sure. heads are 317 so the chamber size is 72 or 74cc I think
Reply




All times are GMT -5. The time now is 04:28 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE