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RedSuperRanger23
12-22-2011, 10:52 PM
World Man o' War, Dart, Boss or other aftermatket block that I've forgot... discuss. I'm planning on a 351W based build.
BLOWN95GT
12-23-2011, 06:46 AM
What kind of power range are you looking for?
Are you wanting to run n/a, nitrous, supercharger, turbo?
RedSuperRanger23
12-23-2011, 09:23 AM
Im not sure on the power range just yet, but Id like to.do a single turbo setup. The main reason for using an aftermarket block is the ability to go to a 4.125 bore without blinking and still have some meat left to spare.
BLOWN95GT
12-23-2011, 09:36 AM
Just figured I'd ask. A lot of people on the turbo forums are running stock 351w block's and over 800rwhp hopefully mine will be close to that. But a aftermarket block is good for piece of mind! And since your thinking of going turbo talk to Matt (coupe) on here, and Reed at WORK TURBOCHARGERS www.workturbochargers.com (http://www.workturbochargers.com) they really know their shit and can help you a lot.
RedSuperRanger23
12-23-2011, 09:48 AM
Yeah, piece of mind and overbuilding is probably gonna be the name of this game. Id really like this to be the first and last engine I build for this car. I just don't know who makes the best block or if there's really that much difference amongst them.
BLOWN95GT
12-23-2011, 09:58 AM
Well the man o war block comes with two extra bolt holes per cylinder for the cylinder heads and all of the main caps are 4 bolt. Where dart and boss blocks are 4 bolt mains only on the center main caps.
RedSuperRanger23
12-23-2011, 10:07 AM
How does two extra bolt holes per cylinder for the head bolts work if the heads you're using comes with the standard number if bolt holes? Maybe I'm missing something here...
BLOWN95GT
12-23-2011, 10:22 AM
I don't think you have to use them if you don't want to or you buy the man o war cylinder heads or have your cylinder heads machined. I think they are used in high compression, and very high boost applications to keep the heads from lifting and blowing the head gaskets.
RedSuperRanger23
12-23-2011, 10:26 AM
Yeah, I saw where it says provisions for the 2 extra per cylinder, so more than likely they wild have to be finished and tapped I guess.
BLOWN95GT
12-23-2011, 10:29 AM
Yeah, I saw where it says provisions for the 2 extra per cylinder, so more than likely they wild have to be finished and tapped I guess.
I don't think you have to use them if you don't want to. I think they are optional if you don't want to all you do is cover them with the head gasket.
QWKSNKE
12-23-2011, 02:37 PM
Just figured I'd ask. A lot of people on the turbo forums are running stock 351w block's and over 800rwhp hopefully mine will be close to that. But a aftermarket block is good for piece of mind! And since your thinking of going turbo talk to Matt (coupe) on here, and Reed at WORK TURBOCHARGERS www.workturbochargers.com (http://www.workturbochargers.com) they really know their shit and can help you a lot.

There is no way I would take a 351 stock that high. I have seen one come apart at a whole lot less rwhp than that
BLOWN95GT
12-23-2011, 02:50 PM
There is no way I would take a 351 stock that high. I have seen one come apart at a whole lot less rwhp than that
Yea well I've seen stock 302's split at 300hp n/a but that didn't stop me before so guess I will have to learn the hard way!
Craig K.
12-23-2011, 03:38 PM
My brother ran an all aluminum Dart block in his Trans-Am series Mustang, it seem to have problems with the high RPM's (9k +) we theriozed that the block was allowing movement in the lower end in the high rpm band, he ended up blowing it at Daytona breaking the rods (titanium).
He got the Dart cast iron block and ran the same set up that he had in the aluminum block and never had a problem.
As I recall he was bored/stroked to 420 something cubic inches.
Like I said I think 9 or 9.5k rpm and as I recall it was 14:1 cc ratio.
SlowJoe
12-23-2011, 04:19 PM
I plan on 700+ in a stock block.
BLOWN95GT
12-23-2011, 04:33 PM
The worst thing you can do to a stock 351w block is over rev it. Rpm's and crank walk is the main problem as long as the rpm's stay below 6200 it should last a while.
QWKSNKE
12-23-2011, 07:10 PM
Yea well I've seen stock 302's split at 300hp n/a but that didn't stop me before so guess I will have to learn the hard way!

Good point! I took my stock 302 block to 536rwhp and it lasted for a long time :D

But to me, the 351w is not much stronger than a 302 block. 800 to the tires is a lot to expect out of an Ford OEM pushrod small block and it last for more than a week or two
BLOWN95GT
12-23-2011, 07:33 PM
Good point! I took my stock 302 block to 536rwhp and it lasted for a long time :D

But to me, the 351w is not much stronger than a 302 block. 800 to the tires is a lot to expect out of an Ford OEM pushrod small block and it last for more than a week or two
:dunno: Guess we will see!
Any way to REDSUPERANGER I think out of the aftermarket blocks I would go with a dart, or man o war. If you need any help with anything let me know Pinson and Gardendale are not that far away from each other, and when you get ready for some machine work give Engine rebuilders in Trussville a call, Donny is an awesome guy who know's his stuff and has state of the art balancing equipment!
ncontt
12-23-2011, 08:17 PM
was just reading on Turboforums/turbomustangs.com today about a dude running a stock 94 roller 351 block and running mid 5's in the 1/8 with a 75mm turbo
RedSuperRanger23
12-23-2011, 09:31 PM
When I do finally start putting all of this together, I'll probably do all of my balance and machine work myself. I did a little work at a machine shop right before I took this last job and I'm still welcome there, plus the added bonus of saying that I built it from 0. If I get my Ranger sold, that will be the payoff on my loan and then when the Accord goes, that'll be part of the block or at least the crank and rods lol.
QWKSNKE
12-24-2011, 11:42 AM
The worst thing you can do to a stock 351w block is over rev it. Rpm's and crank walk is the main problem as long as the rpm's stay below 6200 it should last a while.

Yeah I agree with that
EHardy1971
12-24-2011, 12:16 PM
Yeah I agree with that
x3. I've seen a couple of blocks with basic bolt ons split after they were revved to the moon.
acproxer
12-24-2011, 03:37 PM
get any of the dart series and you will be good to go.
1Quik85GT
12-25-2011, 11:52 AM
I plan on 700+ in a stock block.

bad idea!!!!!!!!!!!!!!
1Quik85GT
12-25-2011, 11:52 AM
get any of the dart series and you will be good to go.

this is the best post on this thread!!!
Dale McPeters
12-26-2011, 08:31 PM
this is the best post on this thread!!!
X2.........by the dart iron and stay away from the rest....

If you are going to stay below 1200hp you can use the 351 dart shp block and save some money as far as the block cost goes...
the last 8.2 deck dart shp that Lee H. and I built made in excess of 1100hp and no problems at all....