Stroker Kit for the 4.6L 3V
07-20-2009, 02:42 AM
#11
Multi-Tasking Moderator!
Join Date: Nov 2006
Location: Detroit Rock City!
Posts: 15,618
This new FRP block is looking real good to us, and we’ve already seen some of its potential. The new BOSS-5.0 iron block starts out at 3.700 bore (stock = 3.55), and when combined with a 3.750 stroker crank (stock = 3.55), you end up with 323 cu in or a 5.3L. Aside from the approximate 90lbs weight penalty… this new block in my opining is something very interesting to consider if the budget allows when looking into a replacement motor in a 4.6L application. This combination gives you a 42 cubic inch bump from the stock 281. Combined with just mild head work and a cam change of some kind, we’ve already seen some impressive results with these “BigBore-Strokers” in a couple of blower applications.
This in my opining is also a more practical thing to consider if you’re having thoughts about trying to install a dimensionally larger 5.4L where a 4.6L originally was. Especially in Mustangs that were of the 2004 models years and older. Their just isn’t enough conversion parts (header, intakes, hood clearance, front dress, etc) out there to make a 5.4L swap worth the trouble in my opining. And with the BigBore Stroker combo, your only 8 cubic inches shy of a 5.4L, with far more compatibility with the new BOSS-5.0 block which retains all of the standard 4.6L block mounting, and long block geometry.
Just to give an idea of the power potential of the new 5.3L BigBore-Stroker we’re starting to offer. We’ve got a customer’s 2004 Marauder equipped with one of these new motors with no major head porting on the stock 32V heads, and some mild Crower cams. Topped off with an intercooled Trilogy 2.3L twin screw blower, making only 13psi of boost from about 4800rpm and up. Burning only 93 octane fuel, and going through the Marauder’s automatic trans and powertrain… this car produces a touch under 580hp at the rear wheels, with what I feel is a moderately conservative tune with both the A/F and spark. This car has a seriously long and wide torque band. Not to shabby for only 13psi and 93 octane going through an auto trans! The old saying “No Replacement For Displacement” still holds true with me. Especially in street cars that are looking for more grunt from street light to street light.
This in my opining is also a more practical thing to consider if you’re having thoughts about trying to install a dimensionally larger 5.4L where a 4.6L originally was. Especially in Mustangs that were of the 2004 models years and older. Their just isn’t enough conversion parts (header, intakes, hood clearance, front dress, etc) out there to make a 5.4L swap worth the trouble in my opining. And with the BigBore Stroker combo, your only 8 cubic inches shy of a 5.4L, with far more compatibility with the new BOSS-5.0 block which retains all of the standard 4.6L block mounting, and long block geometry.
Just to give an idea of the power potential of the new 5.3L BigBore-Stroker we’re starting to offer. We’ve got a customer’s 2004 Marauder equipped with one of these new motors with no major head porting on the stock 32V heads, and some mild Crower cams. Topped off with an intercooled Trilogy 2.3L twin screw blower, making only 13psi of boost from about 4800rpm and up. Burning only 93 octane fuel, and going through the Marauder’s automatic trans and powertrain… this car produces a touch under 580hp at the rear wheels, with what I feel is a moderately conservative tune with both the A/F and spark. This car has a seriously long and wide torque band. Not to shabby for only 13psi and 93 octane going through an auto trans! The old saying “No Replacement For Displacement” still holds true with me. Especially in street cars that are looking for more grunt from street light to street light.
07-20-2009, 07:26 AM
#12
2nd Gear Member
Join Date: Jul 2006
Location: virginia
Posts: 350
yes sir, thats the block. its the same deck height as the 4.6 so everything will bolt on. it is heavier than the aluminum block but its NOT sleeved. I spoke with Mike @ livernois about this setup. to me if your going to upgrade then why not spend the extra $$. To the OP not wanting to spend too much $$ just get the FRPP shortblock @ $4K.
07-21-2009, 09:36 AM
#14
4th Gear Member
Join Date: Feb 2008
Location: NJ
Posts: 1,496
To switch everything over to the new shortblock and install it's about 3k from what I've seen. That's talking with a couple shops including Livernois. THough they did suggest to get other stuff before the install.
Ex: Cams and headers....Because they have to take the motor out and everything apart, they would install these things for practically nothing. That's my plan when I get a forged short block. I'm going with the 298stroker from livernois.
Ex: Cams and headers....Because they have to take the motor out and everything apart, they would install these things for practically nothing. That's my plan when I get a forged short block. I'm going with the 298stroker from livernois.
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