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#81
12-02-2023, 08:56 PM
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Five More
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Tim Corcoran |
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#82
12-02-2023, 09:03 PM
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Five More
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Tim Corcoran |
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#83
12-02-2023, 09:26 PM
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Last 3
When I showed the IH the .953 is my eheads the .976 is the speedmaster the .918 is the speedmaster with a .055 spring locater You will notice in some of the pictures I am showing my older style combustion chamber eheads compared to the streetmaster heads
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Tim Corcoran |
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#84
12-02-2023, 10:10 PM
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Heads look good and you can't beat the price. I wanted to get a pair of the assembled non-CNC ported HR heads since the assembled weren't much more than bare heads. I don't need them so I didn't get them, but I will get them in the future if I have a need.
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1967 Firechicken, 499", Edl heads, 262/266@0.050" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. 10.01@134.3 mph with a 1.45 60'. Still WAY under the rollbar rule. |
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#85
12-02-2023, 10:44 PM
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Unless something has changed 1.65 will work out the box. 1.5 will need work to fit
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Be carefull of the feet you step on today.They may be attached to the a$$ you kiss tomorrow. |
| The Following User Says Thank You to chiefbigb For This Useful Post: | ||
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#86
12-02-2023, 10:55 PM
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Mine came in yesterday as well. I'm going to try to pull the 463 out of my 78 T/A next week (weather pending), I'll match them up and do some comparison pictures with my KRE D-ports once those heads are off.
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 Johnny US Army Retired1978 T/A 463 Pontiac, KRE 74cc 292CFM D-ports, Lunati VooDoo, V-max lifters, TKII, ATM 850 E85 carb, TCI TH-350 race tranny, 3600 converter 3.73 12 bolt 11.63@116.68mph 1981 T/A 4-speed 406 Pontiac, Merrick ported 6X heads, Comp 270S cam, Crosswind intake 750 Street Demon, 3.42 30 spline Eaton posi street car. 1980 Formula 350 Pontiac back burner project 1972 LeMans 350 Pontiac |
| The Following User Says Thank You to Johnny406 For This Useful Post: | ||
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#87
12-02-2023, 11:04 PM
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Quote:
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Tim Corcoran |
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#88
12-03-2023, 12:54 AM
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i think chiefbigbmight have got the ratios confused as to what fits
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#89
12-03-2023, 08:03 AM
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I recently installed a set on a 406. 1.5 ratio rockers have the pushrod up against the intake side of the hole. A 1.6 rocket centered it in the hole.
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Be carefull of the feet you step on today.They may be attached to the a$$ you kiss tomorrow. |
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#90
12-03-2023, 08:07 AM
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Mock up pics
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Be carefull of the feet you step on today.They may be attached to the a$$ you kiss tomorrow. |
| The Following User Says Thank You to chiefbigb For This Useful Post: | ||
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#91
12-03-2023, 10:33 AM
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Moved the holes towards the intake side about where the valve cover rail is and had plenty of room.
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Be carefull of the feet you step on today.They may be attached to the a$$ you kiss tomorrow. |
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#92
12-03-2023, 01:21 PM
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Quote:
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Tim Corcoran |
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#93
12-03-2023, 06:11 PM
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Best I can do. Looking at the hole next to the pushrods you can see a bit. Moved the entire hole that direction top to bottom
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Be carefull of the feet you step on today.They may be attached to the a$$ you kiss tomorrow. |
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#94
12-03-2023, 09:11 PM
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Does anyone know what the valve spring open/closed pressure is on the SM HR heads?
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Johnny US Army Retired1978 T/A 463 Pontiac, KRE 74cc 292CFM D-ports, Lunati VooDoo, V-max lifters, TKII, ATM 850 E85 carb, TCI TH-350 race tranny, 3600 converter 3.73 12 bolt 11.63@116.68mph 1981 T/A 4-speed 406 Pontiac, Merrick ported 6X heads, Comp 270S cam, Crosswind intake 750 Street Demon, 3.42 30 spline Eaton posi street car. 1980 Formula 350 Pontiac back burner project 1972 LeMans 350 Pontiac |
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#95
12-03-2023, 10:08 PM
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Here's what mine looked like when it had 1.5s. Fortunately only used them for break in then switched to 1.65s.
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#96
12-03-2023, 10:22 PM
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See post 66.
Quote:
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Illinois Outlaw Gassers 6.27@107 9.97@131 |
| The Following User Says Thank You to Bill Eveland For This Useful Post: | ||
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#97
12-03-2023, 11:06 PM
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The heads I received the holes for the rocker studs were not deep enough to install the studs all the way. I will have to cut an 1/8" inch off the studs to get them fully seated. Has anyone else had this problem? Has anyone cc's these to see if they are actually 78 cc's?
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Tim Corcoran |
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#98
12-04-2023, 10:00 AM
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Quote:
Murf |
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#99
12-04-2023, 10:15 AM
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I had old studs and guideplates from my E heads when I switched to a shaft and they fit fine even before the tabs were popped off. But the first one before I popped tabs off felt a little "tight" at the bottom.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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#100
12-04-2023, 10:23 AM
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Used a hack saw and cut mine a bit.
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Be carefull of the feet you step on today.They may be attached to the a$$ you kiss tomorrow. |
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