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class racers 340 / 727 #463144 09/08/09 04:06 PM 09/08/09 04:06 PM
Joined: Mar 2007 Posts: 73 indiana M mrart01 OP member
mrart01 OP member M Joined: Mar 2007 Posts: 73 indiana	I see most small block class racers run a 360 w/ a 904 and a low gear set.Are there any class racers w/ a 340 / 727 and if so what kind of times are you getting out of your combos?

Re: class racers 340 / 727 [Re: mrart01] #463145 09/08/09 05:16 PM 09/08/09 05:16 PM
Joined: Oct 2005 Posts: 739 Florida 4 408Dust super stock
408Dust super stock 4 Joined: Oct 2005 Posts: 739 Florida	Everyone I know runs a 904.Would not even think about a 727 in a small block class car.

Re: class racers 340 / 727 [Re: mrart01] #463146 09/08/09 05:18 PM 09/08/09 05:18 PM
Joined: Jan 2003 Posts: 5,894 Florida Locomotion master
Locomotion master Joined: Jan 2003 Posts: 5,894 Florida	There are a lot of 340's in Stock. 360's are most popular in IHRA Stock because Mopar never made a 340 crate engine. 340's tend to be in lighter cars but run as fast or faster than similar 360 combos. The '71 340's are usually the fastest because of the high compression and big TQ. '74 360's are good but the cars just started getting heavier. 340 6-pack Challenger was a good combo until it got factored to a higher HP rating. Elephuntman had the C/SA record with a T/A in the 10.30 range a year or two ago! Using a 727 is a waste of time, $ and HP in class cars because a 904 is legal and faster by at least a tenth.

Re: class racers 340 / 727 [Re: Locomotion] #463147 09/09/09 12:45 AM 09/09/09 12:45 AM
Joined: Aug 2003 Posts: 43,219 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,219 Bend,OR USA	Quote: There are a lot of 340's in Stock. 360's are most popular in IHRA Stock because Mopar never made a 340 crate engine. 340's tend to be in lighter cars but run as fast or faster than similar 360 combos. The '71 340's are usually the fastest because of the high compression and big TQ. '74 360's are good but the cars just started getting heavier. 340 6-pack Challenger was a good combo until it got factored to a higher HP rating. Elephuntman had the C/SA record with a T/A in the 10.30 range a year or two ago! Using a 727 is a waste of time, $ and HP in class cars because a 904 is legal and faster by at least a tenth. Most well set up 904 are even faster than .1 that the 727 prepared the same with equalivent parts Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: class racers 340 / 727 [Re: Cab_Burge] #463148 09/09/09 01:43 AM 09/09/09 01:43 AM
Joined: Jan 2003 Posts: 42,714 Spokane Washington ScottSmith_Harms Mr Wizzard
ScottSmith_Harms Mr Wizzard Joined: Jan 2003 Posts: 42,714 Spokane Washington	So what kind of dough does it take to build a durable 904 that will live behind 5-600HP? What mods are suggested?

Re: class racers 340 / 727 [Re: ScottSmith_Harms] #463149 09/09/09 10:47 AM 09/09/09 10:47 AM
Joined: Aug 2003 Posts: 43,219 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,219 Bend,OR USA	Quote: So what kind of dough does it take to build a durable 904 that will live behind 5-600HP? What mods are suggested? Call Dave Smith at Pro Trans, 661-940-7400 Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: class racers 340 / 727 [Re: Cab_Burge] #463150 09/09/09 10:51 AM 09/09/09 10:51 AM
Joined: Sep 2004 Posts: 6,906 IL, Aurora A ademon master
ademon master A Joined: Sep 2004 Posts: 6,906 IL, Aurora	I hear a soild 2 tenths maybe a bit more with a 904. what year 904's are best to look for?

Re: class racers 340 / 727 [Re: ScottSmith_Harms] #463151 09/09/09 11:11 AM 09/09/09 11:11 AM
Joined: Nov 2003 Posts: 3,060 Western New York sixpackbee master
sixpackbee master Joined: Nov 2003 Posts: 3,060 Western New York	An all out Pro trans will be 5 grand or better. That is the latest trick of the week model. A stock 904 done right will handle quite a charge. I would not be too worried with 500 or a little more. 1959 Bugeye Sprite 1967 Charger Black L code 1967 Coronet R/T Convert Green 440 auto bought from original owner 1968 Charger R/T Bronze 440 4 spd console AM/FM 1969 Super Bee WM21H B5 A40 D21 N96 1969 Barracuda Formula S 340 Convert pilot car 1969 Hemi Road Runner RM23J D32 Omaha orange 4.10 Dana N96 N85 1970 Super Bee WM23N FE5 V1X 3.91 axle package, N96 1970 Road Runner RM21N B3 V1X D13 1971 MG Midget 1971 Road Runner RM23H GW3, A57 1972 Road Runner RM23P FY1, D21

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