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Re: Nice stroker 383 on the dyno today [Re: Streetwize] #1371701 01/18/13 09:35 PM 01/18/13 09:35 PM
Joined: Jan 2003 Posts: 5,484 SoCal Brian Hafliger OP master
Brian Hafliger OP master Joined: Jan 2003 Posts: 5,484 SoCal	Quote: Awesome job, Brian! How do the PRW's compare to the Comps? Are they an exact copy? Love to see a side by side with a 440-2D on that....484 is it? It's a 496 cid (4.31x4.25). The PRW is bushed, and available in 1.6 ratio and are stainless, not chromoly. I like them alot! Brian Hafliger

Re: Nice stroker 383 on the dyno today [Re: Brian Hafliger] #1371702 01/18/13 10:26 PM 01/18/13 10:26 PM
Joined: Jul 2011 Posts: 180 long island newyork A Abodyjohn88 member
Abodyjohn88 member A Joined: Jul 2011 Posts: 180 long island newyork	Brian do you feel the smaller bore of the 383 hurts performance significantly over lets say a 400 or 440 block, if all things were the same ( stroke, heads,intake, cam specs) the only differnce being the larger bore of the b440 and 400?. I have always wonderd why more people don't build Stroker 383"s. Could you tel us why people seem to forget about the 383 when it comes to building big inch strokers and racing engines. What are the downfalls of it? thanks in advance. If I don't go Stroker smallblock ive always thought about building a big inch 383 but most people I talk to say forget it and go straight to the 400 or 440. Thanks in advance good sir!

Re: Nice stroker 383 on the dyno today [Re: Brian Hafliger] #1371703 01/18/13 10:27 PM 01/18/13 10:27 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	Time to paint the intake manifold the same color as the motor, put the coil on the intake and put some stock looking breather caps on it Did you decide to put the wide LSA on the cam for the idle vacume due to the power brakes? Just wondering What is the elevation of your dyno shop? Isn't it right around 20 ft. below sea level? Last edited by Cab_Burge; 01/19/13 01:22 AM. Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: Nice stroker 383 on the dyno today [Re: Abodyjohn88] #1371704 01/18/13 11:11 PM 01/18/13 11:11 PM
Joined: Aug 2011 Posts: 2,856 Pattison Texas CSK master
CSK master Joined: Aug 2011 Posts: 2,856 Pattison Texas	Quote: Brian do you feel the smaller bore of the 383 hurts performance significantly over lets say a 400 or 440 block, if all things were the same ( stroke, heads,intake, cam specs) the only differnce being the larger bore of the b440 and 400?. I have always wonderd why more people don't build Stroker 383"s. Could you tel us why people seem to forget about the 383 when it comes to building big inch strokers and racing engines. What are the downfalls of it? thanks in advance. If I don't go Stroker smallblock ive always thought about building a big inch 383 but most people I talk to say forget it and go straight to the 400 or 440. Thanks in advance good sir! i'm not brian, but the 400,has thicker main bearing webbing,& the smaller bore of the 383 shrouds the valves more than 400,440 1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5

Re: Nice stroker 383 on the dyno today [Re: Abodyjohn88] #1371705 01/18/13 11:23 PM 01/18/13 11:23 PM
Joined: Jan 2003 Posts: 31,021 Oregon A AndyF I Win
AndyF I Win A Joined: Jan 2003 Posts: 31,021 Oregon	At higher engine speeds the larger bore 400 will work better. But for a real street motor like this one the 383 block works just fine. In fact, the smaller bore size might help reduce detonation a tiny bit.

Re: Nice stroker 383 on the dyno today [Re: Abodyjohn88] #1371706 01/19/13 03:06 AM 01/19/13 03:06 AM
Joined: Jan 2003 Posts: 5,484 SoCal Brian Hafliger OP master
Brian Hafliger OP master Joined: Jan 2003 Posts: 5,484 SoCal	Quote: Brian do you feel the smaller bore of the 383 hurts performance significantly over lets say a 400 or 440 block, if all things were the same ( stroke, heads,intake, cam specs) the only differnce being the larger bore of the b440 and 400?. I have always wonderd why more people don't build Stroker 383"s. Could you tel us why people seem to forget about the 383 when it comes to building big inch strokers and racing engines. What are the downfalls of it? thanks in advance. If I don't go Stroker smallblock ive always thought about building a big inch 383 but most people I talk to say forget it and go straight to the 400 or 440. Thanks in advance good sir! I tried talking this guy into a 400 block, but he insisted on using his 383! I prefer the larger bore, and I'm sure it's worth some power but I doubt on a build like this it's worth more than 20HP. Brian Hafliger

Re: Nice stroker 383 on the dyno today [Re: Cab_Burge] #1371707 01/19/13 03:08 AM 01/19/13 03:08 AM
Joined: Jan 2003 Posts: 5,484 SoCal Brian Hafliger OP master
Brian Hafliger OP master Joined: Jan 2003 Posts: 5,484 SoCal	Quote: Time to paint the intake manifold the same color as the motor, put the coil on the intake and put some stock looking breather caps on it Did you decide to put the wide LSA on the cam for the idle vacume due to the power brakes? Just wondering What is the elevation of your dyno shop? Isn't it right around 20 ft. below sea level? I use the wide lca for better vaccum and to spread power out better so there is some girth to the power band. I was held to a very tight budget on this build so my leash kept me from doing more Brian Hafliger

Re: Nice stroker 383 on the dyno today [Re: AndyF] #1371708 01/19/13 03:09 AM 01/19/13 03:09 AM
Joined: Jan 2003 Posts: 5,484 SoCal Brian Hafliger OP master
Brian Hafliger OP master Joined: Jan 2003 Posts: 5,484 SoCal	Quote: At higher engine speeds the larger bore 400 will work better. But for a real street motor like this one the 383 block works just fine. In fact, the smaller bore size might help reduce detonation a tiny bit. Yes I agree, smaller bore will curb detonation better than a larger bore. Still like the large bores though... Brian Hafliger

Re: Nice stroker 383 on the dyno today [Re: Brian Hafliger] #1371709 01/19/13 11:10 AM 01/19/13 11:10 AM
Joined: Apr 2003 Posts: 959 Cincinnati,Ohio J jcastle1 super stock
jcastle1 super stock J Joined: Apr 2003 Posts: 959 Cincinnati,Ohio	So, what did a build like this cost the customer?

Re: Nice stroker 383 on the dyno today [Re: Brian Hafliger] #1371710 01/19/13 11:14 AM 01/19/13 11:14 AM
Joined: Jun 2010 Posts: 3,112 LONG ISLAND fishy340 master
fishy340 master Joined: Jun 2010 Posts: 3,112 LONG ISLAND	good little motor for the street.

Re: Nice stroker 383 on the dyno today [Re: Brian Hafliger] #1371711 01/19/13 04:31 PM 01/19/13 04:31 PM
Joined: Jan 2003 Posts: 1,412 Johnstown 69dart pro stock
69dart pro stock Joined: Jan 2003 Posts: 1,412 Johnstown	I love the little 383's. You can pickup complete 383 cores for $50 all over. I just dropped off some stealth heads, .567 roller cam and 1.6 MP rockers for my new 383 to the engine builder this morning. Mine is very similar except I stayed with a stock stroke, 12 to 1 compression, M1 Single Plane and solid roller cam. The builder is estimating it will make over 500-550 HP but I'm skeptical. We'll see soon enough. Congrats on another successful build. 33 Plymouth Roadster - 383 - 5.90 1/8th 9.58 1/4 68 Dart - 340 66 Belvedere - 400 Windy Hollow Garage - https://www.youtube.com/@windyhollowgarage

Re: Nice stroker 383 on the dyno today [Re: 69dart] #1371712 01/20/13 12:28 PM 01/20/13 12:28 PM
Joined: Aug 2004 Posts: 3,333 MARYLAND 69Cuda340S master
69Cuda340S master Joined: Aug 2004 Posts: 3,333 MARYLAND	Excellent work on that engine build. Sounds awesome!!

Re: Nice stroker 383 on the dyno today [Re: 69Cuda340S] #1371713 01/20/13 03:07 PM 01/20/13 03:07 PM
Joined: Aug 2003 Posts: 8,779 Mt.Gilead, Ohio OhioMopar master
OhioMopar master Joined: Aug 2003 Posts: 8,779 Mt.Gilead, Ohio	That's cool! Being someone that needs a low deck engine for his Bee, a build similar to this seems very tempting. Don't know if I would stick with a 383. But I would like to. 1969 Dart GTS 340 1969 Super Bee X9 N-96 1969 Coronet R/T X9 N-96 2015 Dodge Dart GT 2019 Ram 2500 Big Horn. Looking for the original block for my Bee. The last 4 are 7449

Re: Nice stroker 383 on the dyno today [Re: Brian Hafliger] #1371714 01/20/13 05:12 PM 01/20/13 05:12 PM
Joined: Feb 2005 Posts: 4,313 Prospect, PA BSB67 master
BSB67 master Joined: Feb 2005 Posts: 4,313 Prospect, PA	Thank you for sharing. Intersting.

Re: Nice stroker 383 on the dyno today [Re: BSB67] #1371715 01/21/13 02:33 AM 01/21/13 02:33 AM
Joined: Mar 2003 Posts: 9,099 Rogue River, OR Jeremiah master
Jeremiah master Joined: Mar 2003 Posts: 9,099 Rogue River, OR	I will be in touch for a set of hydraulic roller lifters for our 511 in the future. I like these sleeper builds.

Re: Nice stroker 383 on the dyno today [Re: 69dart] #1371716 01/21/13 11:25 PM 01/21/13 11:25 PM
Joined: Nov 2004 Posts: 2,825 Sk. Canada RemCharger master
RemCharger master Joined: Nov 2004 Posts: 2,825 Sk. Canada	Quote: I love the little 383's. You can pickup complete 383 cores for $50 all over. I just dropped off some stealth heads, .567 roller cam and 1.6 MP rockers for my new 383 to the engine builder this morning. Mine is very similar except I stayed with a stock stroke, 12 to 1 compression, M1 Single Plane and solid roller cam. The builder is estimating it will make over 500-550 HP but I'm skeptical. We'll see soon enough. Congrats on another successful build. With some good headwork I would say over 500 and without just under.

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