[Spridgets] 1967 1275 difrent compared to later ones?
soavero at yahoo.com
Sat Feb 22 05:39:53 MST 2020
The center web is somewhat random. A little bit of dremel work to smooth the hole (if present) has superstitiously worked for me. I have never had a thin-flange or open web block fail. I had a miracle race motor that never had any issues for 10.9 years with a web ot anything else until a rod bolt failed at 8200 rpm. Even that block is getting sleeves and re-used.
As for the thin flanged blocks, I gave one to Jeff Porasik in 2004 and it has been in constant use since, currently in Virginia region. I sold a thin flange block to Jeff Kelly last year, which I would never do if I didn’t believe they are absolutely fine, especially for street use.
> On Feb 21, 2020, at 10:51 AM, Rick Fisk via Spridgets <spridgets at autox.team.net> wrote:
> The oil pan flange is very thin compared to later blocks. Most of the '67 12CC engines came with a nitrided EN-40B crank rather than the later tuftrided cranks. There may also be a difference in the center web, can't remember for sure.
> Sent from my keyboard
>> On Feb 21, 2020, at 10:41 AM, crusaderchuck55--- via Spridgets <spridgets at autox.team.net> wrote:
>> I remember something difrent in 67 internals as opposed to later 1275's. Besides a no air injection cylinder head. What is difrent inside?
>> Sent from my LG Mobile
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