Hardened Push Rods?
Thread Starter
Racer
Joined: Oct 2010
Posts: 474
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From: Bishop CA
Hardened Push Rods?
I'm about to put some IK180 Brodix heads on my 1975 L-48. Before I do the teardown I was wondering if anyone knows if the stock push rods in this motor from the factory are hardened. The reason I want to know cause if it doesn't I need to order a set pryor as we haven't any shops here that stock them. I spoke with an engine builder and he said there is a good chance they are hardened. Anybody with input is appreciated. Thanks
Safety Car
Joined: Mar 2009
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From: Oakland California
Pro
Joined: Dec 2004
Posts: 534
Likes: 2
From: Connecticut
I'm about to put some IK180 Brodix heads on my 1975 L-48. Before I do the teardown I was wondering if anyone knows if the stock push rods in this motor from the factory are hardened. The reason I want to know cause if it doesn't I need to order a set pryor as we haven't any shops here that stock them. I spoke with an engine builder and he said there is a good chance they are hardened. Anybody with input is appreciated. Thanks
Thread Starter
Racer
Joined: Oct 2010
Posts: 474
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From: Bishop CA
Le Mans Master
Joined: Jan 2006
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From: Butler Pa
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Le Mans Master
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From: columbus oh
I'm about to put some IK180 Brodix heads on my 1975 L-48. Before I do the teardown I was wondering if anyone knows if the stock push rods in this motor from the factory are hardened. The reason I want to know cause if it doesn't I need to order a set pryor as we haven't any shops here that stock them. I spoke with an engine builder and he said there is a good chance they are hardened. Anybody with input is appreciated. Thanks
Burning Brakes
Joined: Jan 2007
Posts: 1,057
Likes: 4
From: Concord Calif
Funny opinions everywhere, stock pushrods are harden, don't think so? try cutting one! Anyway the right answer is that you need to check everything and be sure of the length you need, no one can tell you for sure what you need till you check them! You should have the contact of the rocker in the middle of the valve tip at 50% lift. Chrome Moly rods are a good choice because they are soft but have good memory and don't bend easy. Being soft is why they do not break as easy and they give and spring back, not the best for HP but then they don't break very easy either.
Pro
Joined: Dec 2004
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From: Connecticut
