badpony93

my dog bone took that a step further. one arm broke off and allowed the lifter to turn 90* and completely wipe a cam lobe. I guess you really have to do your research before buying what you think is a good part.

StruckBy

Shawn I used those FMS intake gaskets you mentioned. I installed them dry with silicone on the front and rear and so far no leaks and a great seal.

Good luck as always on the project. Can't wait to see it up and running again!!

EE

fast83

now if I remember correctl.y your truck is not a lightning but the yellow show truck with all the modifications to the body. Is this correct? now my next question is solely made just to see what your intentions were for the truck. why would you build a 408 stroker with AFR 185's to produce 331HP? This seams to me like a complete waste of money you could have built a 302 with AFR's with a nice cam and get 331HP! with a mild build on that motor you should be an easy 450HP. The cam you have with the 110* probably lopes pretty hard but is in all aspects a stock cam other wise. .592 ish cam would have had great street manners nearly the same lope but produced a lot more power and ok I understand the roller lifters but not in an application to only produce 331HP roller tips are to help preserve HP when building many ponies but I would have never used dog bone retro fit concidering the other places you sank money definatly should have went "Z" link retro fit roller lifters and you will never have the lifter twist never ever! What size headers are you using? definatly think about going to a 1-3/4 if you step the cam up. is this a FI motor or carbed? any how good luck I just don't understand!

95sporty150

whats hard to understand? thats 331 RWHP not flywheel hp, and you don't seem to understand what a 408 or any stroker is about........... its about torque! did you notice his torque does not drop below 375ftlbs before 4500 rpm and it peaks at around 405ftlbs? He has to meet canadian emmision test and he is running his power through an aod. He is making around 425 flywheel hp with only a as you say "mild" build. You also answered your own question about why he went with his cam choice, its a reduced based circle cam and the choices are limited. whats so hard to understand?

fast83

yes, YES I do know what a stroker is about he should be 550Fttq not 405 maybe it is more of a differance of opinion of "MILD" and I had no idea of the canada emitions I guess they are as bad as california or something. a custom cam is not much more expencive in roller than an off the shelf cam so he had all the options in the world. so get off his nuts and let the MAN answer for himself I was not being rude or an *** I even stated specifically that I was asking this to know what direction he wanted to go or something real close to that ummkay

Bad as L

Those kinds of numbers only show up in the magazines....

O'doyle

95sporty150

im not on his "boys" im just stating facts, sorry you are so butt-hurt by the obvious. If you ever bothered to use the search button or do some reading you might know about his build as someone in the past liked to point out what he "should" be making. Again 550ftlbs at the flywheel is about 410 at the rearwheel which is about what he makes so again whats your point?

shawn, sorry for hijacking. I'm just amuzed when people post what someone should be making, and how they can get more out of a smaller motor ect.....

fast83

Shawn I am sorry he will not let you answer a serious question for your self and for some reason this guy can't stop looking at my butt wondering if he can hurt it! I am just so amuzed by people that can't get a life of there own!

So I am really intrested in what the reasoning was behind this build for it is not me being an *** as apparently it came off as and I do appologize for not shuffeling through 17000 post to read more on the motor build of your truck. which I might add is a super nice specimin


oh and to the guy oh keeps looking at guys butts stop that is gay and 550 should be able to be to the tires not flywheel.

BTW bunch of 351W parts for sale heads yada yada Going built 408, 418,427 have not made my mind up yet oh did I mention a machined 1969 block

RedSVT95

Exactly how old are you?

If you consider 550 ft/lbs at the wheels through an AOD as a "mild" build, you are on drugs.

Brian

Bad as L

tbonemcniel

it's what he wants to do. if shawn wants to spend his money making 331hp, thats up to him. so what if there is more to be had on a 408, his truck is not built for the strip like most of us do. besides ralph, shawn has probably the most modified truck i know of. what's still stock on that thing man? the glovebox, maybe.....

everybody is entitled to build their truck how they want. some guys choose to spend their money on 22's (man you live in bryan, you know what i'm talking about), and others spend it on forged motors and superchargers. to every person, their truck is all about how they want it.



looks like the PPG/OFS guys are makin a showing, where's garret at? lol

__________________
1993 F-150 Lightning - Street Toy
2003 F-150 Harley-Davidson - Cruiser/Tow Pig
1978 Bronco - Off Road Toy
2008 F-250 - Work Truck/Daily Driver

Bad as L

408 windsor
a true 9.0 to 1 comp
iron head WP senior ported....260 cfm @ .500 intake
dyno headers 1 5/8
RPM air gap
custom 750 cfm Holley (marine use)
Reed hyd flat tappet......503 lift....227* @ .050 108 L/C installed 104*
1.6 Rollers
timing locked at 34*
87 octane fuel

After cam break in this motor made 385 hp and 445 torque with a dead flat torque curve starting at a little over 2500 rpm.
Britco racing engines (where the engine was dynoed) says there old dyno is as much as 15% low.
I don't roll like that....it is what it is and we were happy with it.

Sportruk

Wow, you guys are really stirring thing up.
I've known Sporty and T-Bone for a few years on the forums and they know what my truck is all about. You don't need to get ticked off with them, they are just standing up for what they know.
As for my intentions with the truck? To have fun. It was built way back in '91-'95 as a street driver. Never intended on running the 1320. It's built for handling, with air ride and IRS. The T-Bird IRS is rated at the max of 450HP in the Super Coupe with drag slicks. The IRS is my power limiter. I designed the engine for 425 HP and 500ftlb at the fly wheel.
A typical street engine is going to give you a 1.1-1.2 ft lb to cubic inch factor. I'm hitting between the 480-500 mark.
As for the 331 hp, notice where it's dropping of. The cam is rated for 2000-5500. At 5500rpm, it would be around 360 rwhp or in the 425 hp range at the fly wheel. When I ran the dyno, I was still on the stock 1988 fuel pump, which is at best, capable of 350 hp. I know I was having a fuel issues when I was doing some flatout runs on the highway. It was also way to rich. Once I got the wideband on it last year, I was seeing A/F ratios in the low 10s.
I'll be hitting the dyno in June for a dyno day the Stang club has organized.
A 302 is great for a Stang, but not a 4700 lb truck.
A 302 needs just as much machining as a 351, so how would it be cheaper. I was building an engine from scratch, so I had to buy everything anyways, so just I just bought bigger stuff.
If I was trying to extract every bit of power out of the engine, I wouldn't be running shorty headers, Performer RPM intake, Edlebrock 750 and an 1800-2200 stall TQ.
Yes, I do have to do the emissions test. Tailpipe sniff only, but I have to meet the levels of a stock '88 EFI 351. I detuned it so much for the test, it was barely drivable. It passed with only a high flow cat and no other emissions crap on it.
The cam is mild at idle, very little lope at all. I was thinking of going for a larger cam, but it is a pleasure to drive, so why ruin it.
Here's the dyno run from the above posted sheet.

svt2785

You have a number of issues going on here.
Start with the cylinder marks and bearings. Both show clear signs that you are running to much timing. A 408 will need around 28 to 30 total timing max due to the stroke, rod length and that small of cam. A 408 piston moves pretty slowly at the top and bottom of the stroke. I don't know what your static compression is but assuming it is over 9.5 to 1 you will have an lot of dynamic compression with a pretty early intake closing afforded by the short duration of the intake lobe. That's why your torque numbers are high at a low RPM range. The bearings are getting pounded because you have to much timing lead. Some scuffing is pretty normal but excessive timing is increasing the side loading. the proof is in the rod bearings

Heads: The guide wear is from improper valve train geometry. You either have to long or to short a pushrod. Go to a site like Miller Engineering to find out how to properly set the rocker arms. AFR 185's are notorious for poor rocker positioning. You will need a set of Isky adjustable guide plates to get it right or you can expect to continue to have guide problems. Your Machinist should have picked up this problem in an instant and if he is any good he should know how to correct the problem.

Felpro intake gaskets are junk. plain and simple. Try to find a set of Victors which are graphite over a steel core.