Aussie Head Question
Thread Starter
|
Senior User
Joined: Jan 2002
Posts: 109
Likes: 0
From: Green River USA
Aussie Head Question
Hey I was wondering what kind of compression Ratio you would get with Aussie heads and stock (8.0:1) pistons in a 78 400? Also with "High-compression" (8.4:1) pistons made by Badger? This is assuming with NO MACHINING WHATSOEVER. I am looking for about 9.5:1. Also, are they worth the 300-400 you pay for them? Do any mods need to be made in order to fit them? Thanx for the help.
Senior User
Joined: Aug 2001
Posts: 200
Likes: 0
Aussie Head Question
whooops, 400?
I replied to your other post thinking it was a 351 Cleveland, that will change some things.
335C
PS, I wouldn't blueprint a 400, but that's just me, I'm sure there are plenty who would.
I replied to your other post thinking it was a 351 Cleveland, that will change some things.
335C
PS, I wouldn't blueprint a 400, but that's just me, I'm sure there are plenty who would.
Elder User
Joined: Feb 2001
Posts: 829
Likes: 0
From: Porterfield
Aussie Head Question
I'm thinking with aussie heads you gain 1.5 points of comp. Not positive for sure though. Are they worth the money. ..YES.. every penny you spend on them .. Bigger valves, unsheroding the valves, gasket match porting, and a little bowl work... and you get more then your money's worth's in a set of heads for street use and mild strip use.
Thread Starter
|
Senior User
Joined: Jan 2002
Posts: 109
Likes: 0
From: Green River USA
Aussie Head Question
11:1?!?!?!? That seems awfully high to be running on pump gas. Are you sure about that? You mean Premium don't you? I CAN'T live with having to add octane boost every time I fill up so this is an important aspect for me. 11:1? So with that kind of comp do you think you could pull 500 ponies out of a 400? Thanx
Elder User
Joined: Sep 2001
Posts: 887
Likes: 1
From: Jax FL
Aussie Head Question
[updated:LAST EDITED ON 15-Jun-02 AT 05:43 AM (EST)]pump gas octane needs will vary with cam duration and timing. most often running that high of a cr will need the more expensive fuels. you should be fine with 92-94 octane and no additives. for me, i want 11.7:1, gas is not a concern.
dynagear and ohio pistons make flat top 400 pistons. dynagear has a website and a phone number on that site.
http://www.dynagear.com/
dynagear and ohio pistons make flat top 400 pistons. dynagear has a website and a phone number on that site.
http://www.dynagear.com/
Trending Topics
Tuned
Joined: Jun 2001
Posts: 266
Likes: 0
Aussie Head Question
>pump gas octane needs will vary with cam duration and
>timing. most often running that high of a cr will need the
>more expensive fuels. you should be fine with 92-94 octane
>and no additives. for me, i want 11.7:1, gas is not a
>concern.
>
>dynagear and ohio pistons make flat top 400 pistons.
>dynagear has a website and a phone number on that site.
>
>http://www.dynagear.com/
So - the 9:1 pistons are flat top?
>timing. most often running that high of a cr will need the
>more expensive fuels. you should be fine with 92-94 octane
>and no additives. for me, i want 11.7:1, gas is not a
>concern.
>
>dynagear and ohio pistons make flat top 400 pistons.
>dynagear has a website and a phone number on that site.
>
>http://www.dynagear.com/
So - the 9:1 pistons are flat top?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
TMI
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
16
Apr 17, 2006 04:35 AM
72squire
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
5
Dec 20, 2004 12:59 PM
jdawg78
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
30
Nov 27, 2002 11:10 PM