Just picked up the new MM&FF. They are flow testing the heads on the "Fridge". They flowed the stock heads, ported the intake side with very minimal gains (23 cfm), then they ported the exhaust an actually lost flow. Conclusion was that porting the stock heads was not worth the time or money.

------------------
2000 Silver Lightning 13.16 (so far)
PSP 4-way
PSP Filter Kit
PSP Lower Pulley
Level 10 Shift kit
F-250 Trans pan
MagnaFlow 12468
Snug-Lid

I feel a 12.xx coming on.

Team PSP West

 

They must give bad head...if there is such a thing.

It will be interesting to see if they actually do anymore experimenting like welding up the exhausts and reporting; bigger valves, etc.

 

Why doesn't somebody just make a new set of heads for these damn things.

Can you imagine if some moron at holley actually had the idea to make a set of heads that could get another 50 to 60 hp for the lightnings. I know there's not a ton of us like the mustangs, but there's close to 17,000 of us lightning owner's. I'm sure there's more 5.4 f150 guys out there that are look for more power in heads too!!!

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POWER SURGE PERFORMANCE RULES!!!

 

I agree RT. You would think that the aftermarket would be jumping on the bad wagon with parts for the Mod motors. Brodix, Edelbrock. Holley, someone get off you butts and give us head. I means heads.

------------------
2000 Silver Lightning 13.16 (so far)
PSP 4-way
PSP Filter Kit
PSP Lower Pulley
Level 10 Shift kit
F-250 Trans pan
MagnaFlow 12468
Snug-Lid

I feel a 12.xx coming on.

Team PSP West

 

Too many Lightnings!

------------------
Regards,
George
lightning@spikeengineering.com
http://www.spikeengineering.com
---------
Red 2000 Lightning, #4033
1967 CJ-5 (0 - 3 mph: yes)
White 1996 Whippet (600 yard course, 6 turns: 40 Seconds)
Red Wheaton 1995 Ridgeback (1/2 loaf of bread, 6 bites, 4 seconds)
New addition:
2001 RR Puppy: 0 to stumble - next two months

 

I doubt that you will find 50-60hp when p&p picks up as little as it did. Maybe we already have decent heads?

 

Out heads suck ***!

I know we could pick up that much power with a custom set of heads that are made to flow. look at a set of trick flow heads with a stage five port on them. atleast another 125 HP from them on a built up 302 motor. we should get another 50 to maybe 75 Hp once all ported and polished.

lets start up a group buy on some custom made heads for this damn motor.

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POWER SURGE PERFORMANCE RULES!!!

 

And just WHERE are you gonna get all the extra air to make all the horsepower? Do you have a supercharger or something?

I think it will be awhile till someone make a set of alumninum heads. Just can't recover their losses with less than 20,000 vehicles of which less than 1% would probably buy them.

[This message has been edited by CornerCarver (edited 06-14-2001).]

 

If 1% of 20,000 Lightning owners bought heads from say Edelbrock for $2,500 a piece that would bring in revenues of 500,000. I'm not sure what development would cost, but I would best less than 1/2 of the revenue. I believe anyone would jump on $250,000 profit when it's 50%. That's a LOT of profit.

Hell, my nightclub doesn't even turn that and I have one of the biggest in my state!

BfB

[This message has been edited by BfB (edited 06-14-2001).]

 

I'm willing to bet that a good Extrude Hone process would make these bitches flow like monsters! I'd be willing to have mine done if I had an extra set laying around and be a test mule for all of you. I'll have them flowed at PanhandlePerformance.com w/ their bad *** flow bench to even prove it!

http://www.panhandleperformance.com/flowdata.html



Then again, I would GUARANTEE Mark Biddle of Panhandle Performance could get MASSIVE amounts of flow out of these heads w/ just a good quality PROFESSIONAL port job. He has a lot of experience already from them and is swearing over 440hp from these motors w/ not much work done on them.

Now, WHY not design a head that'll fit BOTH the Lightning 5.4 and ALL other Ford 5.4 SOHC, w/ MINIMAL changes.

BfB

[This message has been edited by BfB (edited 06-14-2001).]

 

I have an old set of heads. I've been looking around and talking to several people in the head business about doing work on them. Problem is, no one has done them before, except Houston Performance ($900.00), and even they did not have flow charts on them. I'd love suggestions on who to send them too.

Realize that one of the reasons your not going to get a tremendous amount out of the heads is that when you open them up, you are going to loose boost. You have to re-up the boost to get any gain whatsoever.

When mine were done, I lost about 1lb. of boost. (Fairly mild port it seems) I also had Crane redo my cams. I put a lower pulley on and now I am back to 10+lbs. of boost.

400HP at the rear w/o the new pulley. Haven't had it back to the dyno since the pulley install, but I did run a 12.66 @Moroso last week in 80+F/85% humididy weather.

That's as fast as I went in 60F weather right after the heads were done, so I DO think it helps somewhat. You just have to decide if the dollars are worth the minimal gains available at this time. I also think a lot more can be done.

Tim

 

I'm sure many of the non-Lightning 5.4 engines would be interested in new heads also.

How about a nice DOHC head. They have them in the navigators, and are good enough for the cobras, why not us?

I would also like to see more aftermarket companies produce some more internal engine goodies for us.

 

I don't think our heads are a limitation. If we could just get someone to make cams we'd be in business. With our roots-blown engines, a little more intake lift and a lot more exhaust duration and lift would probably get nearly a hundred horsepower.

 

I wonder if it would be cheaper and easier to have an intake made that would allow the use of the twin cam heads?

------------------
2000 Silver Lightning 13.16 (so far)
PSP 4-way
PSP Filter Kit
PSP Lower Pulley
Level 10 Shift kit
F-250 Trans pan
MagnaFlow 12468
Snug-Lid

I feel a 12.xx coming on.

Team PSP West

 

I vote for the new intake and Navi Heads.

CraigO - 100 HP from Cams??? Do you want to hear about my J-LO?

TimBurntire - How much boost lost due to the porting and how much due to the camshaft grind do you think???