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SB STD stroke RHS headed combos - how fast have u gone?
#1093580
10/13/11 02:53 AM
10/13/11 02:53 AM
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Joined: Sep 2005
Posts: 621
Deep DEEP SOUTH
LAD 524
OP
mopar
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OP
mopar
Joined: Sep 2005
Posts: 621
Deep DEEP SOUTH
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Looking to do a buget upgrade on an otherwise healthy 360 bottom end. Already have 1.5 rollers and 1 3/4" headers in an A body and wondering how fast you SB guys have gone with similar pump gas, RHS headed stock stroke 360 combos?  Let's hear em thanx !!!!
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Re: SB STD stroke RHS headed combos - how fast have u gone?
[Re: LAD 524]
#1093581
10/13/11 03:02 AM
10/13/11 03:02 AM
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Joined: Nov 2005
Posts: 15,119
85086
moparpollack
Lil Herman
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Lil Herman
Joined: Nov 2005
Posts: 15,119
85086
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 Waiting for Brian from IMM to chime in. 
56 Plaza 63 D100 step side 67 Coronet, 68 Roadrunner, 69 Super Bees, 69 Coronet 500 convertible, 70 Roadrunner Post, 79 D150 360, and a severe case of Mopar a,d,d
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Re: SB STD stroke RHS headed combos - how fast have u gone?
[Re: moparpollack]
#1093582
10/13/11 07:28 AM
10/13/11 07:28 AM
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Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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Didn't Brian run 10.90's with one in his Duster?
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: SB STD stroke RHS headed combos - how fast have u gone?
[Re: Guitar Jones]
#1093583
10/13/11 08:34 AM
10/13/11 08:34 AM
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Joined: Feb 2006
Posts: 1,051
The Great White North
RAMM
super stock
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super stock
Joined: Feb 2006
Posts: 1,051
The Great White North
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I believe Brian ran those numbers with W2's. J.Rob p.s. I don't know what it would run but I just ran an EQ headed 3.58" stroke 360 at the EMC and made 515hp 495 ft/lbs. Here's the link 360 dyno pull @ EMC2011
2009 PHR\EMC Competitor
2010 PHR\EMC Competitor
2011 PHR\EMC Competitor
2012 PHR\EMC Competitor
2013 PHR\EMC Competitor
2014 HotRod/EMC Competitor
2015 HotRod/EMC NoShow
2016 HotRod/EMC 3rd place SPEC Bigblock
2018 HotRod/EMC 7th place G3
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Re: SB STD stroke RHS headed combos - how fast have u gone?
[Re: Brian Hafliger]
#1093585
10/13/11 12:05 PM
10/13/11 12:05 PM
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Joined: Jan 2003
Posts: 5,486
SoCal
Brian Hafliger
master
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master
Joined: Jan 2003
Posts: 5,486
SoCal
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Another vid: http://imageshack.us/clip/my-videos/13/irwindalevids003.mp4/I ran it with mufflers, a 10" Hughes converter (borrowed from Rob), the larger headers that made less power on our dyno (all that would fit my car), mech. water pump, alternator, just like it was a street car but with slicks and foot brakin'! This was just like I dyno'd it, 750DP and all.
Brian Hafliger
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Re: SB STD stroke RHS headed combos - how fast have u gone?
[Re: sshemi]
#1093587
10/13/11 01:38 PM
10/13/11 01:38 PM
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Joined: Jan 2003
Posts: 5,486
SoCal
Brian Hafliger
master
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master
Joined: Jan 2003
Posts: 5,486
SoCal
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Quote:
this wasnt std stroke was it?
No, I was just posting up what I did since it was in question. I don't have much feedback from smaller engines using our RHS heads, but one customer in Denver said he went 13.00's with a street dart, 360, our heads, 285HL cam, 10.5:1 compression, 750DP, rpm air gap, 4.10 gear and 727.
Not too bad...
Brian Hafliger
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Re: SB STD stroke RHS headed combos - how fast have u gone?
[Re: LAD 524]
#1093590
10/13/11 06:37 PM
10/13/11 06:37 PM
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Joined: Apr 2009
Posts: 3,415
Toronto
mshred
master
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master
Joined: Apr 2009
Posts: 3,415
Toronto
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Quote:
Thanx for the input fellas....seems that there's so much focus on strokers these days.
Would really love to know what a tight quench, pump gas 360 with a nicely prepped set of RHS heads should do in an A body.
well just to give you some perspective...my motor was a junkyard shortblock, had measly compression, with just Brians RHS heads and his custom grind cam and my car ran like a bat outta H#$%!
So just imagine what a compression bump would do with the same mild parts...i think high 11's or faster are easy, and thats in a heavy car like mine
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Re: SB STD stroke RHS headed combos - how fast have u gone?
[Re: mshred]
#1093591
10/13/11 06:47 PM
10/13/11 06:47 PM
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Joined: Oct 2011
Posts: 318
Fort Collins, Colorado
CoDart
enthusiast
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enthusiast
Joined: Oct 2011
Posts: 318
Fort Collins, Colorado
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I'm in high altitude Colorado and have a 360 magnum with rhs heads, .225/.525 lift, air gap, 750dp, 9.5 compression, hedman headers, 3.91 gears, 3500 stall and a 3480lb car with 275/55/15 drag radials. Have gone best of 13.7@98mph. Has more in it, with tuning and traction it should be 13.5s. That time was with 8600 DA.
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Re: SB STD stroke RHS headed combos - how fast have u gone?
[Re: mshred]
#1093592
10/14/11 03:52 AM
10/14/11 03:52 AM
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Joined: Aug 2004
Posts: 2,128
sweden
sshemi
top fuel
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top fuel
Joined: Aug 2004
Posts: 2,128
sweden
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Quote:
Quote:
Thanx for the input fellas....seems that there's so much focus on strokers these days.
Would really love to know what a tight quench, pump gas 360 with a nicely prepped set of RHS heads should do in an A body.
well just to give you some perspective...my motor was a junkyard shortblock, had measly compression, with just Brians RHS heads and his custom grind cam and my car ran like a bat outta H#$%!
So just imagine what a compression bump would do with the same mild parts...i think high 11's or faster are easy, and thats in a heavy car like mine
I think you need to tell the whole story.
I got very interessted.
Please tell about the 4 speed also.
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Re: SB STD stroke RHS headed combos - how fast have u gone?
[Re: sshemi]
#1093593
10/14/11 05:05 PM
10/14/11 05:05 PM
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Joined: Apr 2009
Posts: 3,415
Toronto
mshred
master
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master
Joined: Apr 2009
Posts: 3,415
Toronto
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Quote:
Quote:
Quote:
Thanx for the input fellas....seems that there's so much focus on strokers these days.
Would really love to know what a tight quench, pump gas 360 with a nicely prepped set of RHS heads should do in an A body.
well just to give you some perspective...my motor was a junkyard shortblock, had measly compression, with just Brians RHS heads and his custom grind cam and my car ran like a bat outta H#$%!
So just imagine what a compression bump would do with the same mild parts...i think high 11's or faster are easy, and thats in a heavy car like mine
I think you need to tell the whole story.
I got very interessted.
Please tell about the 4 speed also.
sure, i'd be glad to share man...combo is very basic
3400lb car with me in it- thats all steel, full interior, with a full sound system as well (on the wheels up runs my subwoofer would launch to the back of the trunk- had to fix that lol)...using a 2.66 first gear 4 speed, centerforce clutch, leaving at 5k, shifting at 6k (my foot never comes off the gas), crossing the stripe at 5500rpm. It has a 4.10 dana 60 in it (needs more gear, but i drive it to the track 2 hours buzzing 3k the whole way there and back)...I run the full caltrac setup front and back minus their monos, and i use a 28x12.5 et street bias ply tire (like about 12 psi)
Engine is a 91 360LA factory roller block
BONE stock bottom end parts...I had to flycut the factory (already dished) cast pistons on the intake side. Rods have new rod bolts..no balance job...just a ball hone, new rings and bearings
Cam is a custom ground hydraulic roller from IMM
Heads are RHS from Brian at IMM as well..62cc chambers, with a composite thin head gasket, I have a calculated 8.5-8.8:1 compression (depending on calculator you use)
Eddy Air gap intake, 750HP holley, 1-5/8 headers 3" exhaust with x pipe and borla race muffs
I run 36 degrees all in by 2300rpms...this thing drinks back 87 octane, doesnt ping at all, and runs like a scalded dog  ...Brian at IMM was a huge help, and I can tell you, everything he predicted about this motor power wise and all was spot on...he definitely knows his stuff, is super nice, and super reasonable too..can't thank him enough
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Re: SB STD stroke RHS headed combos - how fast have u gone?
[Re: Thread Ender1]
#1093595
10/14/11 05:45 PM
10/14/11 05:45 PM
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Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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My stock stroke 340 banged out 12.40's with 9 bent valves, 13 bent pushrods and 12 broken valve springs with old J heads. Can the RHS's do better? I would think so. BTW I bought it that way.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: SB STD stroke RHS headed combos - how fast have u gone?
[Re: RAMM]
#1093598
12/05/11 11:16 PM
12/05/11 11:16 PM
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Joined: Apr 2009
Posts: 3,415
Toronto
mshred
master
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master
Joined: Apr 2009
Posts: 3,415
Toronto
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Quote:
I believe Brian ran those numbers with W2's. J.Rob
p.s. I don't know what it would run but I just ran an EQ headed 3.58" stroke 360 at the EMC and made 515hp 495 ft/lbs. Here's the link
360 dyno pull @ EMC2011
is there a link to a build thread on here of that engine or a run down what parts were in it?
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Re: SB STD stroke RHS headed combos - how fast have u gone?
[Re: mshred]
#1093599
12/06/11 12:04 AM
12/06/11 12:04 AM
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Joined: Oct 2011
Posts: 318
Fort Collins, Colorado
CoDart
enthusiast
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enthusiast
Joined: Oct 2011
Posts: 318
Fort Collins, Colorado
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My engine combo is very similar to MSHREDS. I have a 360 with 9.5 compression, 0.525 lift/0.227 duration cam, Forged pistons, MLS head gaskets, RHS heads w/ stainless valves from hughes, air gap intake, 750 DP, 1-5/8 headers and 2 1/4 exhaust with flow 40's. I run it on 85 octane fuel and it seems to very happy. The car weights 3480 with me(210lb) and it has a 3000 PTC stall with a low gear set 904 and a 8 1/4 rear with 3.91 gears. Rear suspension is all stock just the leafs are moved into the frame rails. Rear tires are 275/50/15 ET street radials. Have gotten a highest reading of 14mpg to, not to shabby. I launch at about 1400rpm and keep it in Drive, it shifts on its own at about 5800rpm. Quickest I have been is 13.78@98mph. Keep in mind that was at 8400 D/A. Up in high altitude country the cars seem like they are breathing through little straws. My car has beat new srt8 challengers, modded 440 challengers, 383 roadrunners, new camaro ss. Not to brag but these RHS headed 360's in lightweight cars can really hold their own.
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http://youtu.be/rewKjJpqGRs