I agree about not wanting to do it twice. Kinda depends on what year of heads you currently have you may not see much or any gain with gt40 heads and much smaller gains from aftermarket heads. Just be aware that not all gains will be realized. Most of the gains will only be at max RPM. For a mild engine like we tend to run in broncos gt40's are a decent choice if you have late model W heads. If you have early W heads then i wouldnt bother with a head swap your better off considering a cam swap.
Just adding aluminum heads on a stock mill, won't really net you much. Unless your going to add a cam, and bump up your compression you will only see 'a little' gain. In my opinion it's probably not worth it. About 8 years ago I pulled a pretty decent W out of an 80 something Bronco and the owner produced reciepts showing a recent rebuild. Since it was a smog era motor it had pretty low compression. I had a nice set of heads C68s with 58cc combustion chambers that were on another I had with an adjustable valve train and slight port work.
I have hardly anything in the whole motor and have been pretty happy with the results. Action's Garage Ford Bronco. I have early w heads on a with flat tops Jack. Attached Images TFSheads3. JPG Originally Posted by Nightstick. You should change the cam add a 4V carb and good ex. Originally Posted by av bronco.
All times are GMT The time now is PM. Search all Bronco Links. Bronco Tech. User Name. Remember Me? Garage Garage. All Garages. Browse by Username. Browse Recently Added. Browse Recently Modified. Browse Most Popular. Advanced Search. Mark Forums Read. Page 1 of 2. Thread Tools. Member Joined: Oct 09 Posts: Find all posts by seedubau. Find all threads started by seedubau. Find all posts by Nightstick. Find all threads started by Nightstick.
Joined: Feb 6, Posts: 1, Profile Page. Thoughts: a If you're prepared to be a little non-traditional: make sure to go roller-cam block. JEM , Aug 27, Joined: Mar 18, Posts: Profile Page. The whole sbf head thing is pretty complicated. The exhaust ports are the weak link on all of them.
Early w's have bigger valves. The hipo heads have screw in rocker studs that make using an aftermarket cam and valve train a lot easier. They have small combustion chambers that about require premium gas, but give a few horses. The have machined spring pockets that take bigger springs than some castings. Requires special intake, and different pistons for a good compression.
The peak horsepower would come at too high an rpm for a heavy car street car with small displacement engine. In the world of my budget, it would depend what I came across cheap, If you found hp or w or gt40 heads they would all be fine. If you somehow find a grand in your back pocket, get World Products Windsor Junior heads. Spyder , Aug 27, You can put roller cams in anything with a conversion kit.
Crane or Comp Cams makes it. I forget which. The cams fit same, it's the roller lifters that need a longer lifter bosses. Someone will chime in with the block casting codes. Joined: Jul 16, Posts: 4, Profile Page. Personnely, I would opt for the cheap and easy to find GT40 Explorer heads. The mustang forums would be a great place to find out which years Explorer to look for at picknpull.
Joined: May 20, Posts: 18, Profile Page. For the dollar-down crowd looking for moderate performance, on pump unleaded: GT40, from the Explorer.
Joined: Aug 5, Posts: Profile Page. I recommend going with a mid '90's roller block. As posted above the GT40P heads are easy to find.
The 's are out there and cheap to build. I like them better than a SBC. Degenerate , Aug 27, Joined: Mar 13, Posts: 4, Profile Page. Joined: Jun 25, Posts: Profile Page. I picked up a complete donor truck for parts, specifically for the engine. I have heard that there will be header fitment issues with the GT40P heads with regards to spark plug access.
Joined: Jul 4, Posts: 1, Profile Page. I would use the explorer motor. Joined: Feb 26, Posts: 1, Profile Page. I think the biggest problem with heads is the deck hieght difference. You need a intake and header then. I built a and used edlebrock Vic Jr 58cc with intake valves.
I am very pleased. Joined: Oct 22, Posts: Profile Page. I put a set of 65 small chambered heads on a with flat tops and it made a mean little engine. It would rap so fast it would make your head spin!
Joined: Apr 7, Posts: Profile Page. If your building an engine for the the car in your sig, I would go with the over the More cubes and torque for the same rebuild cost.
Also, other postings are dead on as to buying new heads over the cost of rebuilding old ones. If you still want a roller , any year 5. All it needs is a cam change and it will really come alive. Hemiman , Aug 27, Joined: Jul 8, Posts: 89 Profile Page. Go the Gt40 not Gt40P, unless you wanna make your own headers over the other factory stuff. Try and get a used Weiand Xcellerator too A 90 roller block with a set of E7 heads ported right and a B- cam will bring a smile to face and shred the hell out of some tires.
I did a. Plenty quick enough. Joined: Apr 5, Posts: Profile Page. Like others have said, you can buy a new or even a used set of aftermarket alum.
I think you can buy Patriot heads for around 7 bills new. Flat Ernie , Aug 28, Joined: Jan 31, Posts: Profile Page.
0コメント