which block for a starting point ?? 400 or 440 - Moparts Forums

Register Log In Moparts Forums Unlawfl's Race & Engine Tech which block for a starting point ?? 400 or 440

Print Thread

which block for a starting point ?? 400 or 440 #1689273 10/22/14 07:21 PM 10/22/14 07:21 PM
Joined: Jul 2005 Posts: 11,632 SHELBY TWP,,MICHIGAN 72N96RR OP I LOVE WEDGIES
72N96RR OP I LOVE WEDGIES Joined: Jul 2005 Posts: 11,632 SHELBY TWP,,MICHIGAN	Ready to start a new build for the 63 Dodge.....Horsepower goal is 650hp with 650 ft bs of torque..I have two blocks..A 1966 440 and a 1973 400 both perfect cores to begin with...Id like a reliable pump gas motor capable of low tens..Auto trans..4:30 geared Detroit Locker 8 3/4 rear with moser axles and cal tracs, super stock spring slightly inboard.. Would you build a big wedge motor using the low deck 400 or build the 440.?? 8308685-IMG_1481.JPG (60 downloads) 1972 Road Runner / GTX 440 4spd Dana 3.54 Just about to turn 26K original miles.. A boat, a GMC truck, some Craftsman Tools, LOTS of Zombie Protection, and a few Goldfish.. If you love someone set them free.. If they come back it means nobody else wanted them either..!!

Re: which block for a starting point ?? 400 or 440 [Re: 72N96RR] #1689274 10/22/14 07:40 PM 10/22/14 07:40 PM
Joined: Oct 2010 Posts: 2,407 Ambridge, Pa. R rickraw top fuel
rickraw top fuel R Joined: Oct 2010 Posts: 2,407 Ambridge, Pa.	I'd go with the 400 blk. Stronger piece.

Re: which block for a starting point ?? 400 or 440 [Re: rickraw] #1689275 10/22/14 08:04 PM 10/22/14 08:04 PM
Joined: Apr 2013 Posts: 345 Nebraska 4 451Cuda enthusiast
451Cuda enthusiast 4 Joined: Apr 2013 Posts: 345 Nebraska	X2 on 400 block

Re: which block for a starting point ?? 400 or 440 [Re: 451Cuda] #1689276 10/22/14 09:33 PM 10/22/14 09:33 PM
Joined: Jan 2003 Posts: 9,996 Frostbitefalls MN (Rocky&Bullw... gregsdart master
gregsdart master Joined: Jan 2003 Posts: 9,996 Frostbitefalls MN (Rocky&Bullw...	hands down the 400. Stronger, lighter rotating assembly and final engine weight, more cores available, bigger bore to start with. 8..603 156 mph best, 2905 lbs 549, indy 572-13, alky

Re: which block for a starting point ?? 400 or 440 [Re: 72N96RR] #1689277 10/22/14 09:33 PM 10/22/14 09:33 PM
Joined: Jan 2003 Posts: 31,021 Oregon A AndyF I Win
AndyF I Win A Joined: Jan 2003 Posts: 31,021 Oregon	Depends if you own any parts and what size the budget is. There are a lot more choices for RB intake manifolds. Headers can be a problem with B engines depending on the heads that you use. My "go to" combo is a 440 block with a 4.25 crank and 6.80 long Chevy rods. That gives you a very foolproof 505 with fairly inexpensive parts. If you're using a standard head like an Edelbrock RPM then you can easily make 650/650 if you're willing to pay for porting. You'll want to build a zero deck engine with a bit of a dish to get the compression just right. A big flat tappet cam should get you there and saves money over a roller setup.

Re: which block for a starting point ?? 400 or 440 [Re: 72N96RR] #1689278 10/22/14 11:35 PM 10/22/14 11:35 PM
Joined: Aug 2003 Posts: 43,157 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,157 Bend,OR USA	Your goals are easy to acheive with either block On pump gas my choice would be the 400 block based on having several 440 blocks that crack the main webs do to poor tuning on the owners part I also use to replace the main caps with The Mopar brand ductile iron and use main studs, the caps are no longer available from Mopar so aluminum or steel is the only choice now I just finished building a 440 stroker race motor with a similar combination, 4.350 bore with 4.300 stroke with 7.100 long Molnar steel H beam rods, for a customer using 440 Source aluminum main caps and there ARP main studs. No track time yet so no real feedback. The machine shop loved those caps, they fit right away and where easy to fit and finish IHTHs Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: which block for a starting point ?? 400 or 440 [Re: AndyF] #1689279 10/23/14 12:33 AM 10/23/14 12:33 AM
Joined: Jan 2003 Posts: 6,591 Canton, Ohio S Sport440 master
Sport440 master S Joined: Jan 2003 Posts: 6,591 Canton, Ohio	The 400 block would be my choice. But like Andy said, what parts do you have. If you have all RB intakes and distributer stuff, then RB. If the other then B. If you have no parts besides the block, then the 400 for sure

Re: which block for a starting point ?? 400 or 440 [Re: Sport440] #1689280 10/23/14 02:06 AM 10/23/14 02:06 AM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	I used a 440 block on my mild 493. I had the 440 block and because of the intake choice it was just easier for me to go with the 440. And I only make about 600 flywheel hp but it was enough to make my goal of getting into the 10's on pump through the pipes at 3700 lbs. Its been in my 63 for just over 3 years and holding up fine and I drive the car alot. Ron

Re: which block for a starting point ?? 400 or 440 [Re: Sport440] #1689281 10/23/14 02:08 AM 10/23/14 02:08 AM
Joined: Jul 2005 Posts: 11,632 SHELBY TWP,,MICHIGAN 72N96RR OP I LOVE WEDGIES
72N96RR OP I LOVE WEDGIES Joined: Jul 2005 Posts: 11,632 SHELBY TWP,,MICHIGAN	Quote: The 400 block would be my choice. But like Andy said, what parts do you have. If you have all RB intakes and distributer stuff, then RB. If the other then B. If you have no parts besides the block, then the 400 for sure All the parts wee sold or given away...I just have the blocks.. 1972 Road Runner / GTX 440 4spd Dana 3.54 Just about to turn 26K original miles.. A boat, a GMC truck, some Craftsman Tools, LOTS of Zombie Protection, and a few Goldfish.. If you love someone set them free.. If they come back it means nobody else wanted them either..!!

Re: which block for a starting point ?? 400 or 440 [Re: 72N96RR] #1689282 10/23/14 03:01 AM 10/23/14 03:01 AM
Joined: Jul 2006 Posts: 4,319 Puyallup, WA S StealthWedge67 master
StealthWedge67 master S Joined: Jul 2006 Posts: 4,319 Puyallup, WA	The 400 makes more sense, but if you're going for a nostalgia look with that year of car, the RB fits a little better. Dressed up as a Max-wedge motor, it would look killer! LemonWedge - Street heavy / Strip ready - 11.07 @ 120

Re: which block for a starting point ?? 400 or 440 [Re: 72N96RR] #1689283 10/23/14 12:27 PM 10/23/14 12:27 PM
Joined: Jul 2004 Posts: 19,317 State of confusion T Thumperdart I Live Here
Thumperdart I Live Here T Joined: Jul 2004 Posts: 19,317 State of confusion	Been trying to kill my 400 (470) for over 13 years............. 72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....

Re: which block for a starting point ?? 400 or 440 [Re: StealthWedge67] #1689284 10/23/14 03:49 PM 10/23/14 03:49 PM
Joined: Jul 2005 Posts: 11,632 SHELBY TWP,,MICHIGAN 72N96RR OP I LOVE WEDGIES
72N96RR OP I LOVE WEDGIES Joined: Jul 2005 Posts: 11,632 SHELBY TWP,,MICHIGAN	Quote: The 400 makes more sense, but if you're going for a nostalgia look with that year of car, the RB fits a little better. Dressed up as a Max-wedge motor, it would look killer! A crossram isn't available for a low deck motor??? 1972 Road Runner / GTX 440 4spd Dana 3.54 Just about to turn 26K original miles.. A boat, a GMC truck, some Craftsman Tools, LOTS of Zombie Protection, and a few Goldfish.. If you love someone set them free.. If they come back it means nobody else wanted them either..!!

Re: which block for a starting point ?? 400 or 440 [Re: 72N96RR] #1689285 10/23/14 04:39 PM 10/23/14 04:39 PM
Joined: Oct 2006 Posts: 596 Mass. 8 80fbody mopar
80fbody mopar 8 Joined: Oct 2006 Posts: 596 Mass.	Only downside to the 400, imo, is there are alot less available intakes, both new & used. If you're going for a specific look definitely check into this.

Re: which block for a starting point ?? 400 or 440 [Re: 72N96RR] #1689286 10/23/14 05:55 PM 10/23/14 05:55 PM
Joined: Jan 2003 Posts: 75,004 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,004 U.S.S.A.	Quote: Quote: The 400 makes more sense, but if you're going for a nostalgia look with that year of car, the RB fits a little better. Dressed up as a Max-wedge motor, it would look killer! A crossram isn't available for a low deck motor??? If you do it with ... gulp ... stage 6 heads on a 400 you can run an RB crossram.

Re: which block for a starting point ?? 400 or 440 [Re: JohnRR] #1689287 10/23/14 09:14 PM 10/23/14 09:14 PM
Joined: Jan 2003 Posts: 8,939 Holly/MI D Dean_Kuzluzski master
Dean_Kuzluzski master D Joined: Jan 2003 Posts: 8,939 Holly/MI	Quote: Quote: Quote: The 400 makes more sense, but if you're going for a nostalgia look with that year of car, the RB fits a little better. Dressed up as a Max-wedge motor, it would look killer! A crossram isn't available for a low deck motor??? If you do it with ... gulp ... stage 6 heads on a 400 you can run an RB crossram. Didn't Edelbrock make an aftermarket crossram (STR??) for the B-motor?? R.I.P.- Gary "Coop" Davis 02/09/68-05/13/04

Re: which block for a starting point ?? 400 or 440 [Re: Dean_Kuzluzski] #1689288 10/24/14 01:07 AM 10/24/14 01:07 AM
Joined: Aug 2003 Posts: 43,157 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,157 Bend,OR USA	Yes they did, they where called Edlebrock STR intakes (Street Tunnel Rams) back in the early 1970s I put one on a 383 in a 1963 Dart, twin Holley 650 D.P., Isky 505 T soild roller cam and a stock converter, ignition and fuel system the owner had promised that he would buy a good converter,ignition, 4.56 gears, electric fuel pump and so on before I started building that motor on his project, he didn't My introduction to some custmers who are flakes I'm a little more selective and careful now on selecting customers to work with Last edited by Cab_Burge; 10/24/14 04:57 PM.

Re: which block for a starting point ?? 400 or 440 [Re: Dean_Kuzluzski] #1689289 10/24/14 01:48 AM 10/24/14 01:48 AM
Joined: Jul 2006 Posts: 4,319 Puyallup, WA S StealthWedge67 master
StealthWedge67 master S Joined: Jul 2006 Posts: 4,319 Puyallup, WA	Quote: Quote: Quote: Quote: The 400 makes more sense, but if you're going for a nostalgia look with that year of car, the RB fits a little better. Dressed up as a Max-wedge motor, it would look killer! A crossram isn't available for a low deck motor??? If you do it with ... gulp ... stage 6 heads on a 400 you can run an RB crossram. Didn't Edelbrock make an aftermarket crossram (STR??) for the B-motor?? I believe you can find a cross-ram. But the motors just don't look the same. I love my 400 based 452, and it looks correct in my 383 car. A 63 M-W style car would just look right with the wide RB look between the fenders. Last edited by StealthWedge67; 10/24/14 01:49 AM. LemonWedge - Street heavy / Strip ready - 11.07 @ 120

Re: which block for a starting point ?? 400 or 440 [Re: Dean_Kuzluzski] #1689290 10/24/14 04:32 PM 10/24/14 04:32 PM
Joined: Jan 2003 Posts: 75,004 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,004 U.S.S.A.	Quote: Quote: Quote: Quote: The 400 makes more sense, but if you're going for a nostalgia look with that year of car, the RB fits a little better. Dressed up as a Max-wedge motor, it would look killer! A crossram isn't available for a low deck motor??? If you do it with ... gulp ... stage 6 heads on a 400 you can run an RB crossram. Didn't Edelbrock make an aftermarket crossram (STR??) for the B-motor?? Yes but ... A find one , ... B for a reasonable price. ... plus it doesn't look like a stock maxie intake.

Re: which block for a starting point ?? 400 or 440 [Re: JohnRR] #1689291 10/24/14 05:00 PM 10/24/14 05:00 PM
Joined: Aug 2003 Posts: 43,157 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,157 Bend,OR USA	They definetily didn't look like a stock Mopar crossram They are a two piece intake with flat top that unbolts, 3 or 4 different tops fit the base Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1