Hey there. I am fairly new here and i was wanting to build up a 400+hp 400+ft. lbs. 428 for my senior project. I have a 75 f250 with a 390 in it and i was wanting to use some parts off of it such as D2te-aa heads, and a holley 750 carb, as well as ceramic coat headers.
I was thinking of:
428 block 30 over
edel rpm intake
edel water pump
crane 941 and lifters?
trw L2303NF30 pistons?
ported d2te heads with CJ valves(if possible)?
Harland Sharp roller rockers?
comp timing set
arp rod bolts
Msd pro billet distributor and 6AL ignition
Do you think this will get me close? If I am missing anything or have the wrong things listed please let me know ! Not sure of what compression ratio this build will bring up. oh and almost forgot, is it possible to do all of this on a 5k budget? Thanks alot for the help!

 

Interesting. The TRW L2303 piston has a 10.3cc dish. The set of D2TE-AA heads I have measured 73cc. You have a couple head gasket options, a .041 Fel-Pro gasket, or a .018" steel shim gasket.

In a standard 428, those pistons should have .016" deck clearance. Using the .018" steel shim head gasket, this would give you .034" quench distance, which is absolutely perfect for detonation avoidance. According to the numbers mentioned above, you'd also have 10.75:1 compression. You'll probably ping with the 941 cam on anything but race gas.

I'd get the chambers polished and the valves unshrouded, and have the chambers taken up to 78cc. This will get you 10.25:1 compression, which is a much more reasonable number for pump gas. With the tight quench distance, you'll be ok with pump gas. Be advised though, that the motor will be VERY sensitive to timing! It will not like a lot of ignition timing. It will, however, be powerfull and efficient.

If you build the motor up this way, according to my Desktop Dyno program, you'll be making 444hp @ 5500rpm, and 489ft-lbs @ 4000rpm. The torque curve is fairly flat.

Edit: 5k budget? You can probably build the above motor on half that. Get it done right the first time and spend the rest on tires.

 

Thanks alot Rusty! I just got done driving my uncles cobra with a hipo 427 and I was amazed!(my uncle just passed away so I took it for one last drive). is there any opinions on a better cam and/or pistons ? this will eventually go into my 5200lb f250 and I want it to be fairly streetable rod that will beat any cheby! Also what kind of rods should I toss in there? Thanks alot for the help!

 

The 941 will be an excellent cam for this motor. I've got one in my 390. It works great.

Use standard 390 or 428 rods. They're more than strong enough with ARP bolts.

 

I did some more testing with the Desktop Dyno program. If you feel like spending a little more of that 5k, you could go with a Crane 349521 roller cam. With the rest of your build staying the same, and using the mentioned .018" head gaskets and 10.25:1 compression, you'd be getting 505hp @ 5500rpm, and 520ft-lbs @ 4500rpm.

 

Wow. If I went with the 521 roller cam, what kind of lifters should i get? Also what kind of pushrods, spings would accept this? I am in no hurry to build this I just need some information so i can find out how much money I need to get. I have one more year untill i might start to build( too long!) Also, where would be a good place to find a 428 block, crank, and rods? Will these heads handle that much lift of the crane 521? Thankyou for your help. I bet those desktop dynos come in handy!

P.S. This is my first engine rebuild(dont think the 5 horse Briggs and Straton counts!)and I just want to do it right (might get the steve christ book)

 

Kurt...Did you take into account the -10.3 cc's of the piston into your Figure's?

Russ

 

get the Steve Christ book it has so much good info on FE motors. It will be the best thing to help you get the motor done and done right.

For about $17 it will be the best investment for your build.

 

Running the 521 roller requires roller lifters and custom pushrods. Plan on spending about a grand extra to go that route. you'll need the matching Crane hyd. roller lifters, and some stout springs. plus, some custom adjustable pushrods to check for accurate pushrod length.

Kurt- if you can build this warm 428 for $2500, I'll put in an order now :-)

 

5k budget....hmmmmm....I do all my projects on $100 budget...everytime I get a $100 I go buy something...LOL. Seriously, 5K is a nice budget...I've done my 390 for less than half that...Of course I didn't go the roller lifter/rocker route...and I didn't put the fancy ignition on....come to think of it I could probably spend 5k pretty easily...LOL.

 

There went the $2500 build cost... You will also need to have this puppy balanced, so buy the flexplate or flywheel, depending on your trans choice.

--Mike

 

For a Block,crank and rods, Check with Dennis at DSC motorsports in Anza Cal.. and be prepared to pay..as there getting hard to come by... Unless your able to get lucky at a Bone yard?? which I doubt!!

Russ

 

Aha! I was under the impression that he already had one to rebuild. Not having one will push up the cost significantly.

Yes Russ, I figured the 10.3cc dish into the calculations.

I'd start out with a mid '70's junkyard 360. Look for a mirror 105 below the left (drivers side) water pump inlet on the block. It has a very nice high strength block which usually takes a 428 bore. Have it sonic checked to make sure. You should be able to pick up a junkyard 360 like this for about $100. Plus, this will give you D2TE-AA heads you're after, as well as all the other junk you dont think about until later. You know, oil pan, valve covers, bolts, harmonic balancer, oil slinger, etc. If you buy all this stuff separate later it will absolutely kill you on price. You will still need to buy a 428 crank and a set of 390 rods though.

If you're going with the 941 cam, you dont need the roller rockers. Just get replacement adjustable rockers for a 427 or early 352 with solid lifters, and you'll be fine. Also get the matching pushrods, length 9.157", from DSC.

You can also save a lot of money by porting your own heads. Ask for advice when you get to that point.

Man I hate to price out engines. It takes *forever*. I usually leave that to the guy building the engine. Here's a few good places to get stuff:

DSC
Jegs
Summit

Oh and Greg, is that with the 941 cam or the 521 cam? The 521 will cost more.

 

Thank you all for your help. I may just go with the 941. i may be able to find a block, crank, and rods around here. if i cant find anything then i will try DSC-looks like a good site. Also,(sorry for all of the Q's) what can i expect for a price of getting the block sonic checked and bored and the heads ported and bigger valves and for the heads chamber polished and unshrouded and taken out to 78cc? I have learned a lot from you guys. thanks

 

Well Brandon, Good Luck on finding your parts..and I hope you find a good size Bank Roll to help you buy it all.... Speed and HP..cost bucks!!

Russ