4.6 big bore?

product1620 · August 30th, 2008, 03:45 AM

ok, so google didn't turn up much information for me, im looking for information about 4.6 to 5.0 big bore engines. I'd really like to see a build thread and or information about the build. Thanks

Boomer · August 30th, 2008, 10:43 AM

There is not all that much to dig up. The block get machined to hand cylinder sleeves that allow a 3.70" piston to be used. Increasing the size of the cylinders adds the cubes and unshrouds the valves to allow the engine to breath better. I am not really sure what information other than than you are looking for.

RandoGT · August 30th, 2008, 12:54 PM

Houston Performance has a big bore stroker 2V if you wanna learn more about it. contact them

product1620 · August 31st, 2008, 12:00 AM

Originally Posted by Boomer

There is not all that much to dig up. The block get machined to hand cylinder sleeves that allow a 3.70" piston to be used. Increasing the size of the cylinders adds the cubes and unshrouds the valves to allow the engine to breath better. I am not really sure what information other than than you are looking for.

So basically your resleving the block with oversized sleves? From what I saw there are companies that will do the work for you or sell you a short block, but I havent seen just the oversized sleves and pistons for sale, I'd like to have a local machine shop do the work, instead of sending a block halfway arond the country and back.

MustangMatt96GT · August 31st, 2008, 12:02 AM

It has to be an aluminum block to get it sleeved, and Darton makes the sleeves

product1620 · August 31st, 2008, 12:08 AM

Thanks, I was planning on going with an alluminum block anyway, but that is the kind of information I am looking for, I'd like to know all the little odds and ends. Any known problems going with nitrous or boost on big bore motors, I would think the machining process would weaken certain things?

SWEET2KSTANG · August 31st, 2008, 12:17 AM

the machining is high as well. the boss block is a a big bore block straight from frpp. the process is supposed to actually make the block more reliable. the thing about running boost on one of them is the compression, well thats if you have a pi swap done.

05mustang_TT_charged · August 31st, 2008, 12:39 AM

here is a 4.6l based block from Ford that increases the displacement to 302 cubic inches using the stock rotating assembly....Ford Racing Performance Parts [M-6010-T50*] and ST Motorsports sells these block for almost half the price of Ford and ST Motorsports has built a few stroker based motors using this block and they were around 324-330 cubic inch modular stroker motors....contact this guy if you have any questions

August 30th, 2008, 03:45 AM	#1
product1620 Regular 98 GT 14.60 @ 94.78mph Join Date: Sep 2006 Location: Scranton, PA Posts: 290 iTrader: 0 reviews	4.6 big bore? ok, so google didn't turn up much information for me, im looking for information about 4.6 to 5.0 big bore engines. I'd really like to see a build thread and or information about the build. Thanks __________________ 1998 GT FRPP: 4.10s, Alluminum d/s STEEDA:upper/lowers, springs, cc plates, tri-ax TOKICO: Adjustable shocks SPEC: alluminum flywheel K&N: Intake Screamin Demon ignition ram: clutch ----------------------- BUCK OFAMA

August 30th, 2008, 10:43 AM	#2
Boomer Enthusiast Join Date: Oct 2006 Location: warren, Mi Posts: 941 iTrader: 0 reviews	There is not all that much to dig up. The block get machined to hand cylinder sleeves that allow a 3.70" piston to be used. Increasing the size of the cylinders adds the cubes and unshrouds the valves to allow the engine to breath better. I am not really sure what information other than than you are looking for. __________________ Just another 10 second Mustang, what did you expect ? http://youtube.com/watch?v=BgykaUrmfvM

August 31st, 2008, 12:02 AM	#5
MustangMatt96GT Proud American 1996 Mustang GT Join Date: Dec 2006 Location: Lakewood, CO Posts: 10,689 iTrader: 3 reviews	It has to be an aluminum block to get it sleeved, and Darton makes the sleeves __________________ RIP Travis Billings Special Thanks to: Andrews Racing Transmissions Baseline Suspensions 25.3 SFI Chassis Build Never Lift Racecars

August 31st, 2008, 12:08 AM	#6
product1620 Regular 98 GT 14.60 @ 94.78mph Join Date: Sep 2006 Location: Scranton, PA Posts: 290 iTrader: 0 reviews	Thanks, I was planning on going with an alluminum block anyway, but that is the kind of information I am looking for, I'd like to know all the little odds and ends. Any known problems going with nitrous or boost on big bore motors, I would think the machining process would weaken certain things? __________________ 1998 GT FRPP: 4.10s, Alluminum d/s STEEDA:upper/lowers, springs, cc plates, tri-ax TOKICO: Adjustable shocks SPEC: alluminum flywheel K&N: Intake Screamin Demon ignition ram: clutch ----------------------- BUCK OFAMA

August 31st, 2008, 12:17 AM	#7
SWEET2KSTANG mm's nitrous mod 2000 mustang gt 11.79@115.83 (old set up) Join Date: Oct 2006 Location: N.W. AR Posts: 12,540 iTrader: 8 reviews	the machining is high as well. the boss block is a a big bore block straight from frpp. the process is supposed to actually make the block more reliable. the thing about running boost on one of them is the compression, well thats if you have a pi swap done. __________________ project warhorse under construction wagon burner under construction as well (04 lightning) being built by MP2 Performance

August 30th, 2008, 12:54 PM	#3
RandoGT Enthusiast 1998 Mustang GT Need to hit the track Join Date: May 2007 Location: Katy, TX Posts: 856 iTrader: 0 reviews	Houston Performance has a big bore stroker 2V if you wanna learn more about it. contact them

August 31st, 2008, 12:39 AM	#8
05mustang_TT_charged Hardcore Enthusiast 2005 Mustang GT 10.32@137.70 Join Date: Mar 2007 Location: LSU Country Posts: 2,774 iTrader: 0 reviews	here is a 4.6l based block from Ford that increases the displacement to 302 cubic inches using the stock rotating assembly....Ford Racing Performance Parts [M-6010-T50] and ST Motorsports sells these block for almost half the price of Ford and ST Motorsports has built a few stroker based motors using this block and they were around 324-330 cubic inch modular stroker motors....contact this guy if you have any questions __________________ 350 rwhp and 310 rwtq at 6000 rpms through stock exhaust system 326 cubic inches of Twin Turbocharged hell will be running soon Tuned by Wes @ TPS Last edited by 05mustang_TT_charged; August 31st, 2008 at 12:41 AM.*

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