For everyone interested in a project like this, check out http://pmeracing.com. I'm going to use one of their kits, with most of the optional components. I will be switching the Scat 9000 for a TE 4340 forged crank, and the KB flat tops for Trickflow TFS-51404331 pistons made by Arias. I'm trying to build an engine that can rev, and hold 7000 rpm, but make power well below that range. I fix boats for a living, and have a 351w marine block, I will be using FTI prepped AFR 185 stroker heads, and 3/4" coated shorty headers
Now the hard part, I am asking for advice from anyone who has built an engine like this as to what carb, intake, and hyd. roller cam to use. Of course I have plans that include a port matched Performer RPM Air Gap intake, a Trickflow TFS-51402001 cam, and probably a Demon carb.
Any links or advice are greatfully accepted. Merry Cristmas :-X12

 

I'd go with one of the 800cfm Edelbrock carbs. Easy to tune and good on fuel. Manifold and cam look good.

 

[updated:LAST EDITED ON 22-Dec-02 AT 08:52 PM (EST)]your going to have to run a high spring pressure to get 7000 rpm out of a hydraulic roller, assuming that there is a hydraulic roller that will go to 7K.Possibly the comp.cams 292HR:-X12

 

I found a good posting on this topic https://www.ford-trucks.com/dcforum/DCForumID113/1240.html

 

Also 7000 rpms i think a single plane such as a victor intake would work better.i believe that is beyond the realm of the dual plane.think about cam retainer w/roller bearings.i would have to go with a demon carb,they are so much nicer than anything out there.

 

Sounds like a nice buildup. The Performer RPM and that TFS cam will work very well together, I'd run a 750cfm Holley/Demon. One thing I see though, there's no reason to spin the motor to 7000rpm with that cam....it'll just be making noise. Just as a reference, I built and dyno'd a 408 with a 242/250* Hydraulic roller, it made peak horsepower at only 6300. Considering the cam you're looking at is 224/232 and you're running a dual plane manifold, I'd think it would make peak power 5300-5500rpm. I don't know what kind of vehicle you're putting the motor in or what the use is, but the Perf RPM and that cam will make for a VERY torquey motor that will still spin to 6000rpm making good power.

BTW, I used AFR205s from Ed at FTI...you'll be happy with those AFR185s!!!!

 

Hi, Thanks for the responses. The point of being able to spin 7000 is to build the engine to be able to sustain it without going to pieces. I like to make the most power I can at almost stock rpm ranges. I think it saves some wear on the engine, and from what I know especially on stroker engines.
Lately I've been talking to the guy from T Meyer http://www.frontiernet.net/~tmeyer
I'm probably going to give them the block to be machined, with splayed 4-bolt mains, and to have the rotating assy. internally balanced.
I think I'll stick with the Trickflow cam, and the Performer RPM intake. I'm still not sure what carb to use, so I could still use input on that. I could also still be convinced that there's a better cam out there, so I'm going to ask around about custom grinds.
I'll keep adding info as I go, and will take any suggestion I can to make this a better build.


My current ride:
This Ford hauls a 26' 10,000lb boat with a camper in the bed!
'85 F150, low 1st 4spd,
B&B 5.0, P&P stock heads, Crane roller cam, Edelbrock RPM intake w/1'spacer, Holley 600,
dual exhaust w/ crossover, H/D radiator w/ electric fan

 

[updated:LAST EDITED ON 26-Dec-02 AT 06:24 PM (EST)]So chilly390 what components did you use? I'm thinking about getting the Trickflow stage 3 cam and the Trickflow R series heads, instead of the stage 2 and the 185 AFRs. I'll probably stick with the Performer RPM and get it reworked if need be, and get a carb with removable venturies. I'd like to peak a little later than 5000 or 5500, but not much more. Thanks for the input!


'85 F150, low 1st 4spd,
B&B 5.0, P&P stock heads, Crane roller cam, Edelbrock RPM intake w/1'spacer, Holley 600,
dual exhaust w/ crossover, H/D radiator w/ electric fan

 

I ran a Holley 950HP, Vic Jr intake, AFR205s, Eagle steel crank, Eagle H-beam rods, SRP pistons giving 11.2:1, 1 3/4 to 17/8" stepped headers, a Coast main girdle, and the cam is 242/250 .576/.577 hydraulic roller. 568hp at 6300 and 535lbft at 4900.

If you're going to run a dual plane intake, I'd stay away from the TFS R heads. The intake will be crapping out about the time the heads hit full stride. Stage 3 cam will be fine...but I'd definitely go single plane if you're going to use it...otherwise again the intake will start to be a real bottleneck.

If you want "stock like" power range, stick to the stage 2 cam, AFR 185s, and the Performer RPM.

 

I just read your sig...is this motor going into the '85 F150? Will it be used for towing? If so, I absolutely would not go any bigger than the Stage 2 cam.

 

 

Well chilly390, I was building it to put in my truck, and use for a hauling engine, but have been talked into going to diesel by a couple of people in my family that travel around hauling fifth-wheel campers.
The engine that is in my truck now, I took out of my Mustang because I got sick of changing trannys ( 2 in 1 summer, and it never never saw the strip). It really wasn't built for hauling, It did have a 650 holley on it, and the intake takes away from the bottom end a little bit. I found a stock 4bbl intake for it, and with that 1' spacer, it should work better. So now the 5.0 will continue to live in the truck, until I sell it after I find a decent truck with a diesel.
For now, I'm going to build the 408 and put it in either a short box F150, or fix the frame and tranny in the Mustang, and drop it in there. I was thinking of what your setup was, and want mine to peak after 5500, and just a little before 6300. I have two setups in mind: (1) the 185 AFRs by Ed, TFS stage 2 cam, and the Performer RPM Air gap, or (2) the TFS R Series heads, TFS Stage 3 cam, and the Performer RPM, or maybe a Victor Jr. I'm going to see if I can find someone with a desktop dyno, or come up with some torque and horsepower figures some how. If you've seen that 432 from one of the links I left, I wouldn't mind that power curve.


'85 F150, low 1st 4spd,
B&B 5.0, P&P stock heads, Crane roller cam, Edelbrock RPM intake w/1'spacer, Holley 600,
dual exhaust w/ crossover, H/D radiator w/ electric fan