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#1
01-17-2024, 07:09 PM
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Pushrod length new Comp Hydraulic rollers?
Helping a buddy put together a 455 with #614s (yes a big dish piston). He has the new Comp "cartridge" HRs . Was wondering if anyt of you all have used them and what ballpark pushrod length you are using to get us close during mock up. I have multiple length adjust pushrods to check with and light springs.
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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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#2
01-17-2024, 07:39 PM
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My engine with the SM heads and those lifters are on the stand,might have numbers for you next week.Tom
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#3
01-17-2024, 08:45 PM
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Thanks Tom.
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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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#4
01-17-2024, 09:43 PM
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Are these the ones with the real narrow part in the middle?
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" Is wearing a helmet illegal" Mike Kerr 1-29-09 |
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#5
01-17-2024, 10:44 PM
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It’s replaceable cartridge.Tom
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#6
04-17-2024, 06:48 PM
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We ended up 8.750 on both. even though what ever exhaust valves the machinist put in were about 0.100 longer then the stock RAIV tuliped valves
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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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#7
04-19-2024, 12:44 AM
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That's about exactly what I ended up with a set of Johnsons.
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