Is the Proformanceunlimited 400HP 390 Turn-Key a fair deal?

Engine, ignition, fuel, cooling, exhaust

Moderators: Ranchero50, DuckRyder

Post Reply
User avatar
robroy
100% FORDified!
100% FORDified!
Posts: 3768
Joined: Sun Jul 06, 2008 4:36 pm
Location: California, Salinas

Is the Proformanceunlimited 400HP 390 Turn-Key a fair deal?

Post by robroy »

Good morning,

I'm looking at the 400HP 390 turn-key crate engine from Proformanceunlimited for my F250, but I'm not experienced enough with engines to know whether $8,400 is a fair deal for it or not.

Here's the engine:

http://www.proformanceunlimited.com/spe ... 425hp.html

Note that the URL says 425 HP while the web page itself says 400 HP. I guess 425 is pretty similar to 400.

I realize that it's a lot of work to put an engine together and I need to pay for:

1. The expertise (planning ability) of the builder
2. Their time
3. The use of all their shop equipment and facilities
4. Their time for support if anything goes wrong with the engine
5. The parts that go in to the engine

My guess is that $8,400 is indeed fair, but I'd like to gather lots of opinions.

Thanks very much!
-Robroy
User avatar
390F100
New Member
New Member
Posts: 174
Joined: Fri Apr 18, 2008 2:14 am
Location: Florence,Az
Contact:

re: Is the Proformanceunlimited 400HP 390 Turn-Key a fair de

Post by 390F100 »

I know a company called Fennell Motorsports out of Casa Grande, Az that will build that same motor for 4,000 less. I can get you there number if you want to call them to ask any questions. The owner is a very good friend of mine that is currently building a 500hp 428 for my 68 f100. Check em out, it would be well worth it.
User avatar
DuckRyder
Moderator
Moderator
Posts: 4925
Joined: Mon Jul 19, 2004 3:04 pm
Location: Scruffy City
Contact:

re: Is the Proformanceunlimited 400HP 390 Turn-Key a fair de

Post by DuckRyder »

I'd say its fair for the specs...

You might also look at:

http://www.southernautomotiveengines.com/

http://www.keithcraft.com/

http://www.dscmotorsports.com/asp/Site/ ... /index.asp

Also "Howdy69" had a 410 built he was pretty pleased with I think so talk to that gy too.

That said 400-425 horse from a 390 really aint that hard to do....
Robert
1972 F100 Ranger XLT (445/C6/9” 3.50 Truetrac)

"An unarmed man can only flee from evil, and evil is not overcome by fleeing from it." -- Jeff Cooper
427
New Member
New Member
Posts: 116
Joined: Wed Jun 11, 2008 4:38 pm
Location: Tennessee, Greeneville

re: Is the Proformanceunlimited 400HP 390 Turn-Key a fair de

Post by 427 »

Looks like a great engine.IMO it sounds kinda high for a 390. As said earlier 400 horse aint hard to get from a 390. The early ones were rated at 375 horse. With todays aluminum heads that would be easily done. Id shop around. Just my :2cents: .
User avatar
convincor
100% FORDified!
100% FORDified!
Posts: 1511
Joined: Wed Sep 12, 2007 5:05 am
Location: Connecticut

re: Is the Proformanceunlimited 400HP 390 Turn-Key a fair de

Post by convincor »

I'd also say that's a little high.
This guy's been around for quite a while. Great feedback.
http://cgi.ebay.com/ebaymotors/Parts-Ac ... m245.l1318

There's been a couple guys that put this in there Cobra Replica's and have been very happy- http://cgi.ebay.com/ebaymotors/FORD-390 ... 0083059871
68 Custom Cab Shorty, 390, C6, 9"-3.50:1 Currie T/L
"Still Plays With Trucks"
http://s101.photobucket.com/albums/m41/convincor/F100/
User avatar
rubiranch
Preferred User
Preferred User
Posts: 321
Joined: Sat Feb 24, 2007 12:26 am
Location: Utah

re: Is the Proformanceunlimited 400HP 390 Turn-Key a fair de

Post by rubiranch »

I wish I had $8400 to spend on my 390. :(
72 F-250 CS XLT 390 C-6 4.10 40k miles
You don't shoot to kill, you shoot to stay alive.
I don't carry because I have to, I carry because I get to.
http://www.fordification.com/galleries/ ... ?album=514
User avatar
td
Blue Oval Guru
Blue Oval Guru
Posts: 1007
Joined: Mon Jun 18, 2007 8:44 pm
Location: Tennessee, Lexington

Re: re: Is the Proformanceunlimited 400HP 390 Turn-Key a fai

Post by td »

convincor wrote:I'd also say that's a little high.
This guy's been around for quite a while. Great feedback.
http://cgi.ebay.com/ebaymotors/Parts-Ac ... m245.l1318

There's been a couple guys that put this in there Cobra Replica's and have been very happy- http://cgi.ebay.com/ebaymotors/FORD-390 ... 0083059871
my small block came from the second one mentioned here and i have nothing but good things to say about them. great engine! and a great buying experience.
User avatar
robroy
100% FORDified!
100% FORDified!
Posts: 3768
Joined: Sun Jul 06, 2008 4:36 pm
Location: California, Salinas

re: Is the Proformanceunlimited 400HP 390 Turn-Key a fair de

Post by robroy »

Good morning! Thanks very much folks for the great replies!

I'm checking out the links to various engine builders and doing comparisons.

One thing I notice is that the less expensive engines aren't "Turn Key," meaning they lack a carb and ignition (and maybe other things)? So those things cost a little cash.

Also, I'm guessing that the warranties mean a lot for an engine like this, and I'm not sure what type of warranties are offered by the folks selling through eBay.

I'll check out each link in detail. Thanks again folks!
-Robroy
User avatar
cathynkeith
Preferred User
Preferred User
Posts: 420
Joined: Tue Aug 15, 2006 9:18 pm
Location: Texas, Longview

Post by cathynkeith »

I am very happy with my 418 Stroker from them, I have left many a vehicle in the dust who said they had 500 hp.

Mine has 497 at the wheels on the dyno.

I have flat out ran a VROD, GT500an a 06 Vett.
Best 1/4 mil using my Passport g-timer http://www.southerncarparts.com/escort- ... p-610.html

I highly recommend Doug, they are great to work with.
http://s115.photobucket.com/albums/n292 ... type=local
Life is good...... when nothing is wrong that money can't fix.
1969 f100 flareside
1962 ECONOLINE TRUCK (done)
1975 Nova (almost done)
User avatar
convincor
100% FORDified!
100% FORDified!
Posts: 1511
Joined: Wed Sep 12, 2007 5:05 am
Location: Connecticut

Post by convincor »

cathynkeith wrote: Best 1/4 mil using my Passport g-timer http://www.southerncarparts.com/escort- ... p-610.html
and the time was???
68 Custom Cab Shorty, 390, C6, 9"-3.50:1 Currie T/L
"Still Plays With Trucks"
http://s101.photobucket.com/albums/m41/convincor/F100/
User avatar
cathynkeith
Preferred User
Preferred User
Posts: 420
Joined: Tue Aug 15, 2006 9:18 pm
Location: Texas, Longview

Post by cathynkeith »

LOL, 11.87
http://s115.photobucket.com/albums/n292 ... type=local
Life is good...... when nothing is wrong that money can't fix.
1969 f100 flareside
1962 ECONOLINE TRUCK (done)
1975 Nova (almost done)
User avatar
cathynkeith
Preferred User
Preferred User
Posts: 420
Joined: Tue Aug 15, 2006 9:18 pm
Location: Texas, Longview

Post by cathynkeith »

using m&h drag tires, 12.60 on street tires
http://s115.photobucket.com/albums/n292 ... type=local
Life is good...... when nothing is wrong that money can't fix.
1969 f100 flareside
1962 ECONOLINE TRUCK (done)
1975 Nova (almost done)
User avatar
averagef250
100% FORDified!
100% FORDified!
Posts: 4387
Joined: Fri Mar 17, 2006 12:58 am
Location: Oregon, Beavercreek

Post by averagef250 »

Turn key that is a deal.

The difference between just the longblock and turnkey is a huge with a performance engine. The extra $4000 is expert labor and dyno time.

Most people do not in their wildest dreams have the expertise needed to tune a high performance engine.

Kiethcraft is well known in the FE world for building a very potent FE. I'm sure his prices reflect that, but if it's what you want go for it.
1970 F-250 4x4 original Willock swivel frame chassis '93 5.9 Cummins/Getrag/NP205/HP60/D70
User avatar
cathynkeith
Preferred User
Preferred User
Posts: 420
Joined: Tue Aug 15, 2006 9:18 pm
Location: Texas, Longview

re: Is the Proformanceunlimited 400HP 390 Turn-Key a fair de

Post by cathynkeith »

MY truck will be up on their web site tomorrow, they got a new web gal that caled for pics and video last week.

http://www.proformanceunlimited.com/
http://s115.photobucket.com/albums/n292 ... type=local
Life is good...... when nothing is wrong that money can't fix.
1969 f100 flareside
1962 ECONOLINE TRUCK (done)
1975 Nova (almost done)
User avatar
robroy
100% FORDified!
100% FORDified!
Posts: 3768
Joined: Sun Jul 06, 2008 4:36 pm
Location: California, Salinas

re: Is the Proformanceunlimited 400HP 390 Turn-Key a fair de

Post by robroy »

Hi folks! Thanks very much for all the fantastic replies.

AverageF250, that's interesting to point out the cost difference between a long block and turn key performance engine, and I think your point makes a lot of sense.

Proformanceunlimited doesn't seem to have any long block prices advertised on their site, but they do have several short blocks. Their highest end short block is listed at $3,015:

http://www.proformanceunlimited.com/spe ... short.html

I'm guessing that their highest end short block might equal the price of their mid-range long block, so here I can see that an "Apples to Apples" comparison between their prices and other engine builders begins to show more similarity.

This makes me think the engine I'm looking at is probably a fair price, since I don't see any other builder listing a Turn Key 390 with similar performance for much less.

Cathynkeith, thanks for your anecdote that shows your great experience with your stroker! I watched some videos of your burnouts and wondered if the engine I'm looking at will sound like that or not--probably not exactly!

Several folks pointed out that 400-425HP isn't a huge amount of power to get out of a 390, and I suppose this is probably true. As I heard it from Steve at Proformanceunlimited, the engine is relatively smooth, requires almost no tuning once dialed in, and is should be very long lasting.

I also asked him about expected gas mileage. I pointed out that my previous engine in my truck (stock, somewhat funky 360) got around 12-15MPG, and asked it it was reasonable to expect around 10MPG from the new engine, and he said that it was a reasonable ballpark figure. Do you guys agree that this is reasonable?

Since I actually plan to drive the truck fairly often, I'm not so interested in an engine that'll take me down below around 8MPG.

Thanks again for all the superb opinions!
-Robroy
Post Reply