5.0 bolt on installation help
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
See...my version says 209hp@3500rpm and 332tq@3000rpm which compares well with my Chiltons manual.. 210hp@3600rpm and 325tq@2800rpm.
Fleet Owner
Joined: Oct 2005
Posts: 20,786
Likes: 1,751
From: Kentucky
Cut from this site: Howards, Hydraulic Roller Camshaft, Ford SB 221-302, 351W-Competition Products
Howards Cams Retro-Fit Hydraulic Roller Camshaft
All Howards™ cams are ground at Howards Cams™, not reboxed like some cam companies. All Howards™ cams use the highest-grade race quality cores available. Howards™ cams are manufactured on dedicated high precision cam grinding machines. Most Howards™ cams are packaged and shipped in our unique, hard, high impact plastic reusable cases. This ensures that the high quality camshaft that went into the case comes out in the same condition, when delivered, as when it was packed.
♦ 100% ground at Howards Cams™ (no re-box)
♦ High grade race quality cores
♦ Hard protective packaging
Note: Stock (O.E.) valve springs cannot be used.
Note: Requires use of retro-fit tie bar hydraulic roller lifters.
Note: Must use 1-3-7-2-6-5-4-8 ignition firing order.
Senior User
Joined: Feb 2007
Posts: 129
Likes: 0
Sorry for the Hijack FYG35.
Roller rockers reduce friction and you gain a little performance on the top end. They are not needed. However Comp is recommending that cam, 35-320-8 be used with 1.7:1 ratio rockers which give more valve lift over the stock 1.6.
If you go with it, can afford the extra expense of rockers, you might as well get roller rockers, $170.
Hmmmm, we haven't mentioned a good double roller timing set either, $40. The timing set is more important than the rockers. Figure-in gaskets as well. I wonder if you will be able to use the stock push rods? The heads should come with that info. or it should be in the specs online.It can get expensive and a budget often helps with part decisions.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Comp Cams says the 35-320-8 was designed for use with 1.7 rockers, that does not mean it requires 1.7 rockers, it'll work just fine with a 1.6 ratio and those will keep total valve lift within the capabilities of the stock valvetrain. If you put 1.7s on it you'll also need new springs, locks, and retainers.
Thread Starter
|
Elder User
Joined: Jul 2012
Posts: 769
Likes: 0
From: Poplar Bluff, MO
okay ive got the gaskets covered.... But do i need anything other than the parts ive ordered because i planned on reusing stock hard ware.. as of now the explorer 5.0 is able to be dropped in with its stock stuff right now.. but im gonna swap the gt40x heads, headers and whichever cam you guys help me decide on and drop it in the truck and go... but as of the rods, lifters and all that stuff will i need anything hardware wise or is it as simple as just doing a parts swap? if you havent caught on this is my first rebuild... ill have some professional help tho..
Senior User
Joined: Feb 2007
Posts: 129
Likes: 0
Conanski recommends larger injectors and a tune with that cam. Maybe a bit milder cam would suit you without those added expenses?
Do the headers match the shape of the exhaust ports on your heads and do you have matching gaskets?
Oil, Plugs, Coolant?
Do the headers match the shape of the exhaust ports on your heads and do you have matching gaskets?
Oil, Plugs, Coolant?
Thread Starter
|
Elder User
Joined: Jul 2012
Posts: 769
Likes: 0
From: Poplar Bluff, MO
Well I got the summit brand shorty headers so as far as the ports fitting i dont know but I still haven't even ordered the heads or cam until y'all can help me decide on a setup that will work
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
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
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
Senior User
Joined: Feb 2007
Posts: 129
Likes: 0
Those heads are not complete, look at them again, and add up the parts needed. Then you might consider a set of used GT40X heads and a mild cam to avoid having to get larger injectors and tune...........................Like Comps 35-308-8
There's nothing wrong with setting a budget and buying the power you can afford. It gets expensive real fast, the expense go up way faster than the actual power gains!
This is for Conanski and you. I think many have gotten away with maxing-out the injectors because it is only for a short time when hitting the higher RPMs and I believe the injector calcs to be conservative. I have seen many builds that show around 300hp that survive and run fine. Ya they survive but are not likely to be getting the most out of them without a tune. Calibrated MAF meters to injector are band-aid, but I have seen them work OK.
Corral.net is a good place to find used heads, better yet, a wrecking yard pick-n-pull.
There's nothing wrong with setting a budget and buying the power you can afford. It gets expensive real fast, the expense go up way faster than the actual power gains!
This is for Conanski and you. I think many have gotten away with maxing-out the injectors because it is only for a short time when hitting the higher RPMs and I believe the injector calcs to be conservative. I have seen many builds that show around 300hp that survive and run fine. Ya they survive but are not likely to be getting the most out of them without a tune. Calibrated MAF meters to injector are band-aid, but I have seen them work OK.
Corral.net is a good place to find used heads, better yet, a wrecking yard pick-n-pull.
Thread Starter
|
Elder User
Joined: Jul 2012
Posts: 769
Likes: 0
From: Poplar Bluff, MO
Well what if I said F the heads since its already got gt40p's and just got a cam.. I just want to see a noticeable difference over stock.. Because I was used to driving a regular bone stock f150 5.0 with 200,000k miles.. So with just headers and a cam would I notice anything? And would people know that what's under the hood isn't stock?
Senior User
Joined: Feb 2007
Posts: 129
Likes: 0
Well what if I said F the heads since its already got gt40p's and just got a cam.. I just want to see a noticeable difference over stock.. Because I was used to driving a regular bone stock f150 5.0 with 200,000k miles.. So with just headers and a cam would I notice anything? And would people know that what's under the hood isn't stock?
Ya still got one problem though. The GT40P heads require a different header than you have. Read-up here: GT40P engine in Bronco - GT40P heads AND GT40P HEADERS that WORK - FSB Forums
Put the "search" function to work to look for what mufflers folks are running and what they sound like. Seems to me the exhaust may need some work with all the mile so it. Well unless that has already been fixed. I like Flowmaster, but they are pricey and there are alterantive that sound as good.
Good Luck!
Senior User
Joined: Feb 2007
Posts: 129
Likes: 0
Senior User
Joined: Feb 2007
Posts: 129
Likes: 0
Then you might consider a set of used GT40X heads and a mild cam to avoid having to get larger injectors and tune...........................Like Comps 35-308-8.
Yup, the Comp cam 35-308-8, headers, and a decent exhaust with the right chamber style muffler would make it sound pretty damn good, you'll get more power over a stock engine, and you will also notice an improvement with the fresh engine.
Yup, the Comp cam 35-308-8, headers, and a decent exhaust with the right chamber style muffler would make it sound pretty damn good, you'll get more power over a stock engine, and you will also notice an improvement with the fresh engine.
Thread Starter
|
Elder User
Joined: Jul 2012
Posts: 769
Likes: 0
From: Poplar Bluff, MO
See my problem is I have already bought these headers Summit Racing® Truck Headers SUM-G9035 - Mobile SummitRacing.com so will these work with gt40x heads?