Quick Head I.D.
Super Moderator
Joined: Apr 2004
Posts: 34,499
Likes: 2,811
Cargo Master
Joined: Apr 2004
Posts: 2,574
Likes: 4
From: Golden, CO
Tall intake ports and they have the extra material cast in for the car exhaust manifolds. The early heads have the bigger intakes, but the exhaust for a unibody car can not be adapted to them.
The bugger detail with the exhaust makes them more desireable to car owners. With a truck you don't have the clearance problems like cars have.
Here is a short read from that other forum:
332-428 Ford FE Engine Forum: Can anyone provide info/ application of C6AE R heads? n/m
Use the search function over there, much to be learned.
The bugger detail with the exhaust makes them more desireable to car owners. With a truck you don't have the clearance problems like cars have.
Here is a short read from that other forum:
332-428 Ford FE Engine Forum: Can anyone provide info/ application of C6AE R heads? n/m
Use the search function over there, much to be learned.
Post Fiend
Joined: Mar 2004
Posts: 6,056
Likes: 8
From: Union, Washington
The later heads (small ports) were developed to increase fuel/air mixture velocities to improve low end preformance on street engine. The older heads (large ports) work better for big cubic inches or high revs. The 390 GT used the small port heads and made good torque and horsepower (325 to 335) all at less than 5000 rpm.
Trending Topics
Junior User
Joined: Jan 2008
Posts: 74
Likes: 0
From: Larchwood, IA
My heads are C6AEU, could you tell me a little about them?
They also say DIF on them, it also says it on the intake manifold too any clue about that?
They also say DIF on them, it also says it on the intake manifold too any clue about that?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
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
Top 10 Ford Truck Tragedies
Joe Kucinski
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
Thread
Thread Starter
Forum
Replies
Last Post
SomeDude451
Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
3
Jan 29, 2013 10:51 AM
ChristophersonFord
Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
1
Dec 28, 2003 09:59 PM
