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Edelbrock RPM versus Stage 6 Exhaust Port Height #2978688
10/26/21 06:43 PM
10/26/21 06:43 PM
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N.E. Ohio
6bblFLASH Offline OP
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Looking to replace Stage 6 heads with RPM Edelbrock.
Any experience on if the headers will fit the same?
Hooker 2" B body


70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ!
2013 StickShift Challenge Winner@ Mopar Nationals!
Re: Edelbrock RPM versus Stage 6 Exhaust Port Height [Re: 6bblFLASH] #2978690
10/26/21 06:48 PM
10/26/21 06:48 PM
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South Park, Pa.
68LAR Offline
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Originally Posted by 6bblFLASH
Looking to replace Stage 6 heads with RPM Edelbrock.
Any experience on if the headers will fit the same?
Hooker 2" B body
. I run RPM’s. I tried those Hookers a while back. Real b—h changing the plugs. Other than that issue, they fit the same. Went back to my 2” CPPA’s. Sold the Hookers.


4 speed street legal. Best time 10.99 @ 124 mph on 93 octane pump gas @ 3926# total weight
Re: Edelbrock RPM versus Stage 6 Exhaust Port Height [Re: 68LAR] #2978695
10/26/21 07:05 PM
10/26/21 07:05 PM
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N.E. Ohio
6bblFLASH Offline OP
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Hard to get to the plug or boot issues etc...???


70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ!
2013 StickShift Challenge Winner@ Mopar Nationals!
Re: Edelbrock RPM versus Stage 6 Exhaust Port Height [Re: 6bblFLASH] #2978766
10/27/21 12:03 AM
10/27/21 12:03 AM
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New York, USA
Chargerfan68 Offline
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New York, USA
I’ve been running the 5209 hooker 2” supercomps for 30 yrs now on my 68 b body with rpm heads. Fit good since the beginning. I don’t find plugs a problem. Not the easiest, but certainly not the most difficult. But, i did notice the newer set my buddy got for his e body were slightly diff. For one, the collector flange was clocked differently and the triangular point where a bolt goes was pointing down reducing clearance slightly. On his car, it mattered…his was lowered with hotchkiss setup so it scraped the ground here and there. On mine….no problem with the old ones from 1990.


1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
Re: Edelbrock RPM versus Stage 6 Exhaust Port Height [Re: 6bblFLASH] #2978775
10/27/21 01:52 AM
10/27/21 01:52 AM
Joined: Oct 2003
Posts: 3,999
South Park, Pa.
68LAR Offline
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Originally Posted by 6bblFLASH
Hard to get to the plug or boot issues etc...???
. Both. Especially #8 and #6.


4 speed street legal. Best time 10.99 @ 124 mph on 93 octane pump gas @ 3926# total weight
Re: Edelbrock RPM versus Stage 6 Exhaust Port Height [Re: 68LAR] #2978779
10/27/21 02:48 AM
10/27/21 02:48 AM
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N.E. Ohio
6bblFLASH Offline OP
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Ok...thanks.
Nervous about changing the heads....nothing seems to ever fit with changing more than bargained for.
Had to modify the 5209 to fit...move 1 tube...ain't doing that again...


70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ!
2013 StickShift Challenge Winner@ Mopar Nationals!
Re: Edelbrock RPM versus Stage 6 Exhaust Port Height [Re: 6bblFLASH] #2978798
10/27/21 08:15 AM
10/27/21 08:15 AM
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usa
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lewtot184 Offline
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i haven't messed with stage 6's in years but i thought the exhaust port was raised vs the rpm in stock location,......? may not mean anything,....?

Re: Edelbrock RPM versus Stage 6 Exhaust Port Height [Re: lewtot184] #2978820
10/27/21 09:55 AM
10/27/21 09:55 AM
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So. Burlington, Vt.
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fast68plymouth Offline
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68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Edelbrock RPM versus Stage 6 Exhaust Port Height [Re: fast68plymouth] #2978831
10/27/21 10:12 AM
10/27/21 10:12 AM
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Posts: 13,319
Marion, South Carolina [><]
an8sec70cuda Online content
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FWIW I ran Hooker 5209 headers w/ Edelbrock Performer RPM heads on a 440 and didn't have a problem w/ plugs.


CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
Re: Edelbrock RPM versus Stage 6 Exhaust Port Height [Re: fast68plymouth] #2978912
10/27/21 01:33 PM
10/27/21 01:33 PM
Joined: Jan 2003
Posts: 3,830
N.E. Ohio
6bblFLASH Offline OP
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Originally Posted by fast68plymouth


Thanks for the link.
Hard to argue with pictures. 👏👏👏👍


70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ!
2013 StickShift Challenge Winner@ Mopar Nationals!
Re: Edelbrock RPM versus Stage 6 Exhaust Port Height [Re: 6bblFLASH] #2978978
10/27/21 04:53 PM
10/27/21 04:53 PM
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Posts: 16,916
NC
440Jim Offline
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440Jim  Offline
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NC
Nice picture to describe things in that link.

From my notes on Stage VI and factory iron:
These numbers may not be perfect, but they should be pretty good. The way I see it, the Stage VI when installed on the block will vertically raise the headers 3/8" and move it horizontally out about 3/16" on each side (wider).







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