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Advice on building a 525 hp 416. Combos and costs. #1079755 09/21/11 11:27 AM 09/21/11 11:27 AM
Joined: Jan 2003 Posts: 412 Hampton Va gtsdon OP mopar
gtsdon OP mopar Joined: Jan 2003 Posts: 412 Hampton Va	Looking to build a 525 hp (416) stroker and would like input pertaining to proven combos and expected costs. Motor will be street and strip (mostly street) so it must run on pump gas. Parts I have to work with- 340 block, 30 over with mains studded. Scat H-Beam rods E- Heads, ported with crane gold roller rockers. RPM Air gap intake with 750 HP Holley carb. Headman headers with 3� exhaust and flowmasters 10� 3500 Turbo Action converter built 727 Trans. 430 rear gears with 29� tall tires All will be installed in a 3500 lb Dart. Any input, lessons learned etc would be appreciated.

Re: Advice on building a 525 hp 416. Combos and costs. [Re: gtsdon] #1079756 09/21/11 11:54 AM 09/21/11 11:54 AM
Joined: Jan 2003 Posts: 30,989 Oregon A AndyF I Win
AndyF I Win A Joined: Jan 2003 Posts: 30,989 Oregon	Shouldn't be a problem. Give Dwayne a call at Porter Racing Heads and have him pick a cam for you. You might also send him your heads to have him flow them and touch them up as needed.

Re: Advice on building a 525 hp 416. Combos and costs. [Re: AndyF] #1079757 09/21/11 12:07 PM 09/21/11 12:07 PM
Joined: Nov 2004 Posts: 8,094 Sunnyvale, CA Jeepmon master
Jeepmon master Joined: Nov 2004 Posts: 8,094 Sunnyvale, CA	My little 410 stroker came in at 525 on an engine dyno.. It was a simple build.. Eddy heads ported and flowing close to 290 cfm 11:1 compression for pump gas 256 duration .630 lift roller cam 750 Holley sitting on a Super Victor TTI headers.. Good luck with your build 73 Duster 360 stroker http://www.cardomain.com/ride/2594657

Re: Advice on building a 525 hp 416. Combos and costs. [Re: gtsdon] #1079758 09/21/11 12:49 PM 09/21/11 12:49 PM
Joined: Aug 2003 Posts: 43,097 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,097 Bend,OR USA	Quote: Looking to build a 525 hp (416) stroker and would like input pertaining to proven combos and expected costs. Motor will be street and strip (mostly street) so it must run on pump gas. Parts I have to work with- 340 block, 30 over with mains studded. Scat H-Beam rods E- Heads, ported with crane gold roller rockers. RPM Air gap intake with 750 HP Holley carb. Headman headers with 3� exhaust and flowmasters 10� 3500 Turbo Action converter built 727 Trans. 430 rear gears with 29� tall tires All will be installed in a 3500 lb Dart. Any input, lessons learned etc would be appreciated. The 750 carb will probally struggle to get there, a 850 won't Been there done that with a lower compression pump gas W2 headed 418 for ninesecondPhil several years back the rest looks good, I would go with what you got and IF your not happy with the results, add a bigger carb later The 750 will drive nice on the street but choke the motor down in the upper RPMs Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: Advice on building a 525 hp 416. Combos and costs. [Re: Cab_Burge] #1079759 09/21/11 01:08 PM 09/21/11 01:08 PM
Joined: Jan 2003 Posts: 412 Hampton Va gtsdon OP mopar
gtsdon OP mopar Joined: Jan 2003 Posts: 412 Hampton Va	Thanks for the responses. CAB, I drove Phil�s Cuda at VMP a few years back. Car pulled nicely and ran good numbers. This is the type of performance I am trying to accomplish.

Re: Advice on building a 525 hp 416. Combos and costs. [Re: Jeepmon] #1079760 09/21/11 01:59 PM 09/21/11 01:59 PM
Joined: Jan 2003 Posts: 412 Hampton Va gtsdon OP mopar
gtsdon OP mopar Joined: Jan 2003 Posts: 412 Hampton Va	What do you guy�s think about the converter? I am currently running it behind my 340 and it works great. Just not sure if it will be right for a 4� crank. Also, I believe the Headman headers will need to be upgraded. Unfortunately, the header flanges are a bit smaller than the exhaust ports of the heads causing restrictions. If I run the current headers how much HP do you think will be lost?

Re: Advice on building a 525 hp 416. Combos and costs. [Re: gtsdon] #1079761 09/21/11 05:19 PM 09/21/11 05:19 PM
Joined: Jun 2010 Posts: 3,112 LONG ISLAND fishy340 master
fishy340 master Joined: Jun 2010 Posts: 3,112 LONG ISLAND	1968 340 block,eagle 4340 stroker 4" crank,diamond flat top pistons 11 to 1 comp,bullit flat tappet 255/255 588 lift,4.30 gears,3500 stall treemaster ati conv,28x10 tires..o yea ootb eddy heads 3200lb had me in the 10's easy o yea 750hp carb. 74 dart

Re: Advice on building a 525 hp 416. Combos and costs. [Re: fishy340] #1079762 09/21/11 05:20 PM 09/21/11 05:20 PM
Joined: Jun 2010 Posts: 3,112 LONG ISLAND fishy340 master
fishy340 master Joined: Jun 2010 Posts: 3,112 LONG ISLAND	ps made 506hp and 540lbs of tq all below 6000rpm on ray bartons dyno.

Re: Advice on building a 525 hp 416. Combos and costs. [Re: fishy340] #1079763 09/22/11 01:00 AM 09/22/11 01:00 AM
Joined: Jan 2003 Posts: 5,484 SoCal Brian Hafliger master
Brian Hafliger master Joined: Jan 2003 Posts: 5,484 SoCal	Quote: 1968 340 block,eagle 4340 stroker 4" crank,diamond flat top pistons 11 to 1 comp,bullit flat tappet 255/255 588 lift,4.30 gears,3500 stall treemaster ati conv,28x10 tires..o yea ootb eddy heads 3200lb had me in the 10's easy o yea 750hp carb. 74 dart That cam is close to what I use for 520+HP...I use a 251-260 cam on a 108lca. When you say ported heads....any idea how much work was done and by whom? Brian Hafliger

Re: Advice on building a 525 hp 416. Combos and costs. [Re: Brian Hafliger] #1079764 09/22/11 12:47 PM 09/22/11 12:47 PM
Joined: Jan 2003 Posts: 412 Hampton Va gtsdon OP mopar
gtsdon OP mopar Joined: Jan 2003 Posts: 412 Hampton Va	Heads were ported by a local old timer. As far as I know no angle valve job was done during porting. I have been running these heads for about 5 years on a mild 340. These heads have ran 11.10 with a 100 shot of NOS. The motor is now starting to use some oil and smoke. This is a street car that I drive quite a bit in the summer and take to the track 3-4 times a year. I would like to continue running low 11s without the NOS so in my openion the 4" crank is the best way to acomplish this. I belive 525 hp will get me there.

Re: Advice on building a 525 hp 416. Combos and costs. [Re: gtsdon] #1079765 09/22/11 12:59 PM 09/22/11 12:59 PM
Joined: Aug 2003 Posts: 3,245 Between a rock & a hard place C cudadoug master
cudadoug master C Joined: Aug 2003 Posts: 3,245 Between a rock & a hard place	Quote: What do you guy�s think about the converter? I am currently running it behind my 340 and it works great. Just not sure if it will be right for a 4� crank. Also, I believe the Headman headers will need to be upgraded. Unfortunately, the header flanges are a bit smaller than the exhaust ports of the heads causing restrictions. If I run the current headers how much HP do you think will be lost? The converter should "loosen up" quite a bit with the added torque of the 4" crank. Best thing to do before the new motor goes in is to sent to a GOOD converter guy, telling him the new combo.

Re: Advice on building a 525 hp 416. Combos and costs. [Re: gtsdon] #1079766 09/22/11 01:00 PM 09/22/11 01:00 PM
Joined: Oct 2005 Posts: 1,927 Seaford, Va Kindafast top fuel
Kindafast top fuel Joined: Oct 2005 Posts: 1,927 Seaford, Va	Don , put a 4" arm in that dude and you will never go back. I love the power they make. 6.50 @105.26

Re: Advice on building a 525 hp 416. Combos and costs. [Re: Kindafast] #1079767 09/22/11 03:19 PM 09/22/11 03:19 PM
Joined: Aug 2006 Posts: 2,141 junction city oregon V viperblue72 top fuel
viperblue72 top fuel V Joined: Aug 2006 Posts: 2,141 junction city oregon	Mine was 3200 pound duster w/out me 408 cast mopar crank Eagle h beams Wiseco pistons 10.7 comp. Xe286 solid roller Indybrocks Victor intake 950 holley 3k stall 4.10 gears. I went 11.0@122 with a 1.65 60ft. I only ran 2 passes with this combo so no tuning. Sold the motor. Guy I sold it to put in a 264@050 cam and went 126 mph.

Re: Advice on building a 525 hp 416. Combos and costs. [Re: Kindafast] #1079768 09/22/11 05:31 PM 09/22/11 05:31 PM
Joined: Aug 2003 Posts: 3,245 Between a rock & a hard place C cudadoug master
cudadoug master C Joined: Aug 2003 Posts: 3,245 Between a rock & a hard place	Quote: Don , put a 4" arm in that dude and you will never go back. I love the power they make. Granted not a street car, but I was STUNNED that my 416 with RHS heads would go 10.30's first time out and a best of 10.14 at 3100#! Also, of note best 1/8 mph is 107 and change. Must have some decent mid-range power... LOVE the 4" crank small blocks!!

Re: Advice on building a 525 hp 416. Combos and costs. [Re: cudadoug] #1079769 09/23/11 09:01 AM 09/23/11 09:01 AM
Joined: Oct 2003 Posts: 2,403 WASHINGTON, PA 1 11secaarcuda top fuel
11secaarcuda top fuel 1 Joined: Oct 2003 Posts: 2,403 WASHINGTON, PA	Quote: Quote: Don , put a 4" arm in that dude and you will never go back. I love the power they make. Granted not a street car, but I was STUNNED that my 416 with RHS heads would go 10.30's first time out and a best of 10.14 at 3100#! Also, of note best 1/8 mph is 107 and change. Must have some decent mid-range power... LOVE the 4" crank small blocks!! Your combo please including transmission, gears, etc. Please tell me more about your cylinder heads. 67 Dart GT 340 4 speed 70 AAR Cuda 408 6 barrel 96 Indy Ram original owner 2011 Hemi Durango

Re: Advice on building a 525 hp 416. Combos and costs. [Re: 11secaarcuda] #1079770 09/23/11 08:21 PM 09/23/11 08:21 PM
Joined: Aug 2008 Posts: 941 Texas, USA ChrgrCuda super stock
ChrgrCuda super stock Joined: Aug 2008 Posts: 941 Texas, USA	68 Barracuda Notchback. Full interior, street legal. Only fiberglass 6 pack hood. All rest steel. 10.86@122 on DOT Hoosiers. 360 Magnum 4" Stroker crank Eagle Rods 10.8:1 compression Hydraulic Roller .555 and .565 lif, 256@.050 Edelbrock Magnums with SDSS Stg II port job, 57 cc chambers Mopar Magnum M-1 ported 2"Wilson Spacer QF 950 DP TTI 1 5/8 headers 4000 Ultimate Converter 998 with CRT RMVB 4.11 8 3/4 68 Cuda Notchback [Email]10.86@120[/Email] 69 Charger R/T 440/505 2009 Challenger SRT8

Re: Advice on building a 525 hp 416. Combos and costs. [Re: 11secaarcuda] #1079771 09/23/11 08:51 PM 09/23/11 08:51 PM
Joined: Aug 2003 Posts: 3,245 Between a rock & a hard place C cudadoug master
cudadoug master C Joined: Aug 2003 Posts: 3,245 Between a rock & a hard place	Quote: Quote: Quote: Don , put a 4" arm in that dude and you will never go back. I love the power they make. Granted not a street car, but I was STUNNED that my 416 with RHS heads would go 10.30's first time out and a best of 10.14 at 3100#! Also, of note best 1/8 mph is 107 and change. Must have some decent mid-range power... LOVE the 4" crank small blocks!! Your combo please including transmission, gears, etc. Please tell me more about your cylinder heads. Trans is 904 (no T-brake) with custom 8" converter 4.56 gears with a 29.5 tire (Would like to try 4.30's) Motor is a run-of-the-mill deal, KB flat tops (12.2), SCAT I beam rods, custom Bullet solid (NON roller) cam, OLD Victor and an even older Holley 800 that was rubbed on to flow 848 cfm from stock at 802. Heads are 2.02 RHS LA heads. They were inproved about 10 cfm from the supplier (bought them complete) but the peak numbers are nothing that most guys here would brag about: 268 at .600, stalling and starting to go backwards after .650". Would the car go 9.90's with a "race" head and the correct cam/converter, most likely but you cannot beat these heads for the money. 6839331-Mopar-Magic-9-11-11-219-M.jpg (48 downloads)

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