502 F350 engine

Nice!

Lem, care to give any more detales on this?

TFS street/strip heads
J429 FRPP manifold [performer rpm]
218*/224* comp hyd. flat tappet cam
QFT 735 VS carb
9.25/1 comp ratio

Diesel tq and hp numbers plus 2/3ird's more available rpm range.............

Any work done to the heads and manifold or is it all "box stock"?

Is that electric w/pump just for the dyno session?

Heads/manifold are unmodified . The electric pump motor is a dyno room unit .

Yup. Right now I wish I had more money. Would fit my needs just fine.

Hey Lem how do you think it would have done with the SCJ head on it?

I think they'd be great...but this thing is gonna weigh 9000# before payload so I desided to stay with the smaller intake port . If it was going in a car I'd certainly look at the larger SCJ intake ports .

Lem Evans wrote:TFS street/strip heads
J429 FRPP manifold [performer rpm]
218*/224* comp hyd. flat tappet cam
QFT 735 VS carb
9.25/1 comp ratio

Thanks for posting!

bruno wrote:sweet build Lem ..... it would also be cool to see what kind of mileage this piece would get once it gets on the road

I'd be curious on the mileage as well. Nice numbers regardless.

Nevs wrote:

bruno wrote:sweet build Lem ..... it would also be cool to see what kind of mileage this piece would get once it gets on the road

I'd be curious on the mileage as well. Nice numbers regardless.

I will report back . One thing I can tell you is that it feel damn good to not being looking for fuel every time we looked up...compared to the big HP units with 1250s attached

Thats a good topic Lem How much fuel will a 900/1000 hp engine use on each pull

It's the warm-up....oil temp mostly that kills you

Impressive #s , and a very good looking motor as well. Like the cherry m/t valve covers, haven't seen a pair that clean in at least a decade. That would be an awesome spec motor for a classic old Ford p/u. Talk about driveability! Torque to break the back end loose at will!

bbf-falcon wrote:Thats a good topic Lem How much fuel will a 900/1000 hp engine use on each pull

EMC motors in the 750 hp range with 2 dominators seemed to go thru about 10 gallons a day, probably 15-20 pulls or so.

i believe Lem and Bob went thru 5-6 gallons of fuel on a dozen pulls on the 562 .... i believe

When my motor was on the dyno down at Bret's, the readout for fuel consumption at WOT was 75gal/hr . This was on a baby motor with only about 600hp.

we only went through 7 gals of methanol when we did our smallblock, that was breakin, 2 warmups, and over a dozen pulls.

Lem Evans wrote:TFS street/strip heads
J429 FRPP manifold [performer rpm]
218*/224* comp hyd. flat tappet cam
QFT 735 VS carb
9.25/1 comp ratio

Interesting....a 218-224 @.050 cam making that kind of power with 9.25 to 1 c.r.. What's really interesting to me is that the torque band from 2500 to 4600. It never dipped below 548 ft lbs !

Equally impressive is the 450 hp and 578 ft/lbs at 4100 rpm which I believe is the shift point for a C-6 trans. (under full throttle)


Thanks for posting Lem !

Do you think the motor would lose much with ported bigger valve D0VEs flowing 313/182 at .600 lift with everything else the same. Maybe a bigger cam but still hyd.

Lem the funny thing is Blake and I were talking a month ago about building an engine identical to this but using Pro Crap heads to keep the compression down, we figure it should build around 400 to 425 hp and have about 550+ torque, but thats the only thing I can think those heads would ever be good for....but I was thinking more like a 780 vs holley


Randy

droppedf100 wrote:Do you think the motor would lose much with ported bigger valve D0VEs flowing 313/182 at .600 lift with everything else the same. Maybe a bigger cam but still hyd.

I think you'd probably loose at least 40-50hp all things equal

Good build Lem, there I thought you never fooled with these small engines! Although this build doesn't help my confidance in my build that I will come close to my goals.

Outstanding Lem...

Looks like you found a bit more after we talked.

Small cam plus good heads = big hp at reasonable RPM.
This is a lesson that many should heed. Its all about the combination of parts...

Damned near 1 HP per inch at 4700 RPM Damn!!!