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#41
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Back to simplicity , please.
' Progress ' . . . ?
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#42
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Quote:
Was this engine ever on a dyno? How did you decide where to shift and set the rev limiter? Stan
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Stan Weiss/World Wide Enterprises Offering Performance Software Since 1987 http://www.magneticlynx.com/carfor/carfor.htm David Vizard & Stan Weiss' IOP / Flow / Induction Optimization - Cam Selection Software http://www.magneticlynx.com/DV Download FREE 14 Trial IOP / Flow Software http://www.magneticlynx.com/DV/Flow_..._Day_Trial.php Pontiac Pump Gas List http://www.magneticlynx.com/carfor/pont_gas.htm Using PMD Block and Heads List http://www.magneticlynx.com/carfor/pont_pmd.htm |
#43
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honestly i just picked 5500 because it sounded safe! no dyno yet but might get it to a chassis dyno next year for the heck of it ... i have an RPM on it now but i also have a T2 with an open spacer on the shelf.
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#44
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Yes, in the '60's, when most of our Pontiac engines were produced, lifters were about $1.00 each. Cams were $25. We installed them and had very few failures, even with high valve spring pressures.
Today, oils are much better, but something has gone wrong with technology related to cams and lifters. It's amazing to me that, after many years of questionable cams and/or lifters, that on one has the answer as to why. As evidence of the improvement in engine oil--remember the early Old's V8's and others with noisy lifters? Those same engines today, with modern engine oil, run without the valve train noise.
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BONESTOCK GOATS '64 GTO Tripower Hardtop (Wife's Car) '64 GTO Tripower Post Coupe (My Car) '99 Bonneville SE Sedan |
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#45
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Another informative video from Powell Machine - reinforces the prevailing issue is machining rather than hardness. That being said, if I bought FT lifters, I would opt for the DLC treatment: https://youtu.be/k_ExoIuTpks?si=Izne7RU87Ol2ZDUw
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Will Rivera '69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears ‘66 Lemans, 455, KRE D-Ports, TH350, 12 bolt 3.90 gears '64 LeMans 400/461, #16 Heads, HR 230/236, TKO600, 9inch Rear, 3.89 gears (Traded) '69 LeMans Vert, 350, #47 heads: Non-running project Last edited by grivera; 11-12-2023 at 01:01 AM. |
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#46
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The DLC looks to be a game changer for us engine traditionalists looking to avoid the retrofit roller lifter pitfalls. |
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#47
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Jeff |
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