Re: Mopar Stage VI heads and Roller Rockers
[Re: Mopar.70]
#3008791
01/25/22 11:42 AM
01/25/22 11:42 AM
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Joined: Dec 2013
Posts: 4,663 Wichita
GY3
master
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master
Joined: Dec 2013
Posts: 4,663
Wichita
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Probably a question better asked in the Unlawful Race section.
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
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Re: Mopar Stage VI heads and Roller Rockers
[Re: GY3]
#3008801
01/25/22 11:58 AM
01/25/22 11:58 AM
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Joined: Jun 2008
Posts: 3,916 usa
lewtot184
master
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master
Joined: Jun 2008
Posts: 3,916
usa
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it's been quite a few yrs since i messed with this. I used to put together a 470 bracket engine for some friends using stage 6 heads and a comp cams .690 roller. we used indy rockers at first and they were unreliable with the k1000 springs and ended up using harland sharps. the thing with stage 4,5 and 6 heads is the recommended offset intake rockers. we didn't use offset rockers but had to add push rod clearance at the bottom of the outside of the intake port wall. after doing this there were no more issues. don't do the crane offset intake rocker. i've tried that and the ones i have are very crummy. the fulcrum points are all over the place and they'll eat valve guides quickly.
Last edited by lewtot184; 01/25/22 12:15 PM.
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Re: Mopar Stage VI heads and Roller Rockers
[Re: hemienvy]
#3008802
01/25/22 11:58 AM
01/25/22 11:58 AM
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Joined: Nov 2004
Posts: 16,469 On the run…
BloFish
I Live Here
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I Live Here
Joined: Nov 2004
Posts: 16,469
On the run…
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I prefer Harland Sharp as well.
It really doesn't matter whether you win or lose… as long as you look good doing it!
‘65 A100 ‘69 ‘Cuda ‘73 Vega GT ‘06 Mega Cab ‘14 Mercedes SLK
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Re: Mopar Stage VI heads and Roller Rockers
[Re: AndyF]
#3008976
01/25/22 08:13 PM
01/25/22 08:13 PM
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Joined: Dec 2021
Posts: 1,117 Loudoun County, VA
Brad_Haak
super stock
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super stock
Joined: Dec 2021
Posts: 1,117
Loudoun County, VA
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Mock them up and see if they line up properly and have the correct geometry. That is the only way to know. If they fit correctly and work correctly then you are good to go. If they don't then sell them and buy something that works. This ^^^ The Crane Golds usually fit the Stage VIs quite well. If the Cranes line up properly on the valve stems, then a standard Harland Sharp will be too long. You would need to buy the Edelbrock-specific Harland Sharps that have a shorter distance between the shaft centerline and roller tip centerline. I don't know what length the Mancini bushed rockers made by HS are, but they might be worth checking out if you simply don't want to use the Cranes. Max Wedge Stage VI heads require a .485" offset intake rocker, but standard-port Stage VIs use a regular offset rocker for intake & exhaust.
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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Re: Mopar Stage VI heads and Roller Rockers
[Re: Mopar.70]
#3009170
01/26/22 01:13 PM
01/26/22 01:13 PM
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Joined: Jun 2008
Posts: 3,916 usa
lewtot184
master
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master
Joined: Jun 2008
Posts: 3,916
usa
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these are the crane stage 4-5-6 offset intake rockers. i found that an offset rocker wasn't absolutely necessary on a stage 6, but i did do some clearancing at the bottom of the intake outer wall with a .690 lift cam.
Last edited by lewtot184; 01/26/22 01:17 PM.
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Re: Mopar Stage VI heads and Roller Rockers
[Re: Mopar.70]
#3009509
01/27/22 09:13 AM
01/27/22 09:13 AM
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Joined: Jun 2008
Posts: 3,916 usa
lewtot184
master
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master
Joined: Jun 2008
Posts: 3,916
usa
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I'm thinking mine are standard. Don't plan to run a cam over 680 as i plan to drive it on the street some yet. So maybe ok to run with them. These are them, not the best angle I know. But motor is all torn down now, so only picture I have. those are the standard cranes. i'd be careful of spring pressures. watch push rod geometry with those long adjusters.
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