some vids of my truck and the 400 after the rebuild:

millk river mud bog first run - Car Videos on StreetFire
YouTube - Cardston mud bog run 1
YouTube - My last run in cardston
YouTube - missed shift run in pollockville
YouTube - Cardston mud bog run 2
YouTube - Pollockville mud bog in truck vid

 

Looks like a lot of water & not much mud.

 

Um, when did this turned into a mud bogging forum?

 

Yeah the rebuild went a little wilder than orginally thought:

everything is studded, rebalanced the bottom end, flat top pistons and the block and heads were shaved to get compression up to a min. of 12:1 (static), solid roller .662/.685 lift cam, heads are ported as far as the 4v quench heads can be taken before port stuffers and such are needed, ported rosch b351 intake with price spacers and a demon 750 carb (which is way to small, upping to a predator this winter), full msd ignition, all in all it goes like a bat out of hell.

 

one fine ride!!! Nice 400.

 

mustange70, do you know what kinda HP your puttin down?

 

I read that the leader of the Masters enginge building competition used a 400 platform and is getting over 600hp /torque. What would the engine life be for a build like this one or the Master builder's engine?

 

you are referring to the motor that jon kasse built. if i remember correctly, he was around 408 ci. one of the parameters of the '08 EMC, was to use a flat tappet cam. he was using a custom ground Comp cam and had rockers that were an insane ratio of 2.2:1. if you read the whole article on that build, when they tore the motor down for tech inspection after the dyno pulls, cam wear was very obvious, and the motor would only have lasted maybe a pull or two more before cam lobes wouldve been worn completely off.

{this may be an issue that could be resolved with a roller cam, but the point is, this is a radical build, and i might advise going a little milder for engine longevity. if you want those numbers, you should consider power adders or a bigger block.}-my $.02

 

Yes, that was what I was referring too, but I never saw the particulars. Initially I am just going to replace the timing chain[Ca smog retarded 6 degrees] and if needed the oil pump. If the result gives me good power and reasonable gas milage [11 to 14] after going to 35" tires and headers + a big exhaust, then I want to get serious and build or buy a short block and build up the top end for longevity and power/milage. That is why I was interested in the engine from this thread- it seems to have the power, but is it strictly for mud bogging with a rebuild in the near future?

 

once you fix that timing issue (ford was retarded on that one....) it should put you in a very good power range. like the low 300s. you might be happy with the numbers you get off of that alone. put some exhaust on it like youre saying, and youll have a pretty formidable, almost stock motor. i know for a fact that my 460 is makin less than 300 ponies, and its still capable of being a handfull.

 

Thank you for the info- I don't want to Hijack this thread any further. I hope the gas milage picksup after the lower RPM's help on the highway. Regards

 

After some back and forth with the builder we're estimating its tickling ~600hp, not near that in tq though, which is probably 500 ish, we tried to get it on the dyno before we put it in the truck but the dyno guy had family issues and we didn't havve the time to wait to get it done, but we're planning on doing it this winter though.


The one saving grace for this motor is that its for mud boggin and racing, its not daily driven nor does it see drag strip use, that right there will help ensure it'll live a couple season. The other things that will help it live is the fact everything is studded, and all the oiling precautions have been taken to help make it live (i've ran into this problem before on my first build, pan was to small and i sucked it dry), as in the pits reving at redline and up to temperature the oild pressure is between 60 and 70psi, and the motor doesn't run hotter than 170 deg's, no matter the situation.

 

Installing A 400M Short-Block Into A 351 Cleveland Stroker Engine - Muscle Mustangs & Fast Fords Magazine

a huge 460 based engine will make more power
but a lowly 400 can be made to scream

 

You seem to have figured out how to keep it running. Thanks for the video. Impressive.

 

read the "boat anchor wins again" thread. two years running, jon kaase has built 400s that won the jegs engine masters challenge. scoring is based on who makes the most HP per cubic inch of displacement.