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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/[email protected]" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. [email protected] 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$$ you kiss tomorrow. |
| The Following User Says Thank You to chiefbigb For This Useful Post: | ||
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#86
12-02-2023, 10:55 PM
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Mine came in yesterday as well. I'm going to try to pull the 463 out of my 78 T/A next week (weather pending), I'll match them up and do some comparison pictures with my KRE D-ports once those heads are off.
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 Johnny US Army Retired1978 T/A 463 Pontiac, KRE 74cc 300CFM D-ports, Howard's custom SFT, Nash Intake,QFT 950 E85 carb, TCI TH-350, 4200 converter 3.73 12 bolt [email protected] 1981 T/A 4-speed 406 Pontiac, Merrick ported 6X heads, Comp 270S cam, Crosswind intake 750 Street Demon, 3.42 30 spline Eaton posi street car. 1972 LeMans 350 Pontiac H/S Drags project |
| The Following User Says Thank You to Johnny406 For This Useful Post: | ||
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#87
12-02-2023, 11:04 PM
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Quote:
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Tim Corcoran |
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#88
12-03-2023, 12:54 AM
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i think chiefbigbmight have got the ratios confused as to what fits
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#89
12-03-2023, 08:03 AM
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I recently installed a set on a 406. 1.5 ratio rockers have the pushrod up against the intake side of the hole. A 1.6 rocket centered it in the hole.
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Be carefull of the feet you step on today.They may be attached to the a$$ 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 300CFM D-ports, Howard's custom SFT, Nash Intake,QFT 950 E85 carb, TCI TH-350, 4200 converter 3.73 12 bolt [email protected] 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. 1972 LeMans 350 Pontiac H/S Drags project |
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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 [email protected] 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs 1964 Corvette Coupe 327 4 speed |
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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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