Aussie heads worth it?
Thread Starter
|
Senior User
Joined: Oct 2005
Posts: 271
Likes: 0
From: Gresham Oregon
Aussie heads worth it?
So, I'm pondering my 400 build. I have a complete 79 400 to rebuild for my 79' short wide 4x4, 4 speed pickup. I do not tow, race, or haul anything heavy. basically I'd like a motor with a little fun factor and not spin it past 5500 rpms, so I'm thinking of;
TMI pistons
ComCams Hydraulic roller COMP Cams - Cam Details
Scorpion bolt down rockers
balanced rotating assembly
Recurve distributor for my build and rig
and already have on my 351m
Edelbrock Performer non-egr intake
Holley 600cfm
Hedman 1-5/8" fender well headers
2-1/2" exhaust with Magnaflow cats and Flowmasters
Which leaves my question about what heads to run. Looking at others builds and available parts, I have tossed around using the Aussie heads, but are they worth it for my level of build? I know they have better combustion chambers, but are the stock open chambers as good with the better TMI pistons? I know the exhaust port of the Aussie is better than the later 2v due to the cooling hump. I guess at what point do you toss the 2v's and go Aussie?
I'm not including Alloy heads, those are way out of my budget.
TMI pistons
ComCams Hydraulic roller COMP Cams - Cam Details
Scorpion bolt down rockers
balanced rotating assembly
Recurve distributor for my build and rig
and already have on my 351m
Edelbrock Performer non-egr intake
Holley 600cfm
Hedman 1-5/8" fender well headers
2-1/2" exhaust with Magnaflow cats and Flowmasters
Which leaves my question about what heads to run. Looking at others builds and available parts, I have tossed around using the Aussie heads, but are they worth it for my level of build? I know they have better combustion chambers, but are the stock open chambers as good with the better TMI pistons? I know the exhaust port of the Aussie is better than the later 2v due to the cooling hump. I guess at what point do you toss the 2v's and go Aussie?
I'm not including Alloy heads, those are way out of my budget.
Freshman User
Joined: Apr 2009
Posts: 42
Likes: 0
From: Toronto Ontario Canada
the money you spend on the Aussie heads you can just clean up the stockers and have a little left to put someplace else. they'll work just fine for your build.......a little clean up and a good valve job and there you go....money in the bank and the fun factor is still there.
Posting Guru
Joined: Jul 2007
Posts: 1,355
Likes: 1
So, I'm pondering my 400 build. I have a complete 79 400 to rebuild for my 79' short wide 4x4, 4 speed pickup. I do not tow, race, or haul anything heavy. basically I'd like a motor with a little fun factor and not spin it past 5500 rpms, so I'm thinking of;
TMI pistons
ComCams Hydraulic roller COMP Cams - Cam Details
Scorpion bolt down rockers
balanced rotating assembly
Recurve distributor for my build and rig
and already have on my 351m
Edelbrock Performer non-egr intake
Holley 600cfm
Hedman 1-5/8" fender well headers
2-1/2" exhaust with Magnaflow cats and Flowmasters
Which leaves my question about what heads to run. Looking at others builds and available parts, I have tossed around using the Aussie heads, but are they worth it for my level of build? I know they have better combustion chambers, but are the stock open chambers as good with the better TMI pistons? I know the exhaust port of the Aussie is better than the later 2v due to the cooling hump. I guess at what point do you toss the 2v's and go Aussie?
I'm not including Alloy heads, those are way out of my budget.
TMI pistons
ComCams Hydraulic roller COMP Cams - Cam Details
Scorpion bolt down rockers
balanced rotating assembly
Recurve distributor for my build and rig
and already have on my 351m
Edelbrock Performer non-egr intake
Holley 600cfm
Hedman 1-5/8" fender well headers
2-1/2" exhaust with Magnaflow cats and Flowmasters
Which leaves my question about what heads to run. Looking at others builds and available parts, I have tossed around using the Aussie heads, but are they worth it for my level of build? I know they have better combustion chambers, but are the stock open chambers as good with the better TMI pistons? I know the exhaust port of the Aussie is better than the later 2v due to the cooling hump. I guess at what point do you toss the 2v's and go Aussie?
I'm not including Alloy heads, those are way out of my budget.
yeah you can use your stock heads and they will do fine, instead i suggest:
1. getting for 150 bucks more some yella terra bolt down adjustable rocker arms (tim sells them), since with them you dont need machining nosr guide plates to have adjustable rockers and will have a more acurate lift than with the scropions (just ordered ones myself)
2.If keeping the stock 2v heads i recomend for 30 bucks more (i think) getting a costum roller grind from comp cams (tim also knows) and extend the exhaust duration from seat to seat a bit more, expample: the magnum you want has 270 int 270 ext, make it 270 int 280 ext, believe me you will benefit a LOT more and will have sooner and way better torque... since the 2v exaust port on this heads are a bit limmited a double profile cam is recomended...
Posting Guru
Joined: Jul 2007
Posts: 1,355
Likes: 1
Trending Topics
Posting Guru
Joined: Jul 2006
Posts: 1,354
Likes: 1
From: America
i wouldnt buy aussie heads unless i ran a flat top piston rule racing class with stock heads... i bought 2 sets and both were cracked. if you want to spend money on heads, buy aluminum with the machine work already done and you will be money and power ahead, and if you dont want to spend money just use stock and you will be fine.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Thread
Thread Starter
Forum
Replies
Last Post
ErrorS
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
8
Feb 15, 2008 05:55 AM
roger dowty
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
13
Nov 4, 2006 05:11 PM
78bigbronco
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
2
Jul 31, 2006 08:33 AM
packlet
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
12
Dec 20, 2004 03:39 PM