Crane Gold rocker mystery??
Just weird it's so uniform.
Are these rockers pretty good?
Seems like I've heard mixed reviews over the years. They are late 80's- early 90's vintage I believe.
He was told the engine was a 1973 340 with roller rockers and a mild cam, actually it is a 70 340 with X-heads and these, Weiand Action Plus intake and the rest is still unknown, including cam brand and specs, pistons and whether it has been overbored. It's got a 5 speed Keisler Tremec tied to it with a 9-1/4. out of a truck with 4.10 gears. He is getting drive line vibration at highway speeds. It has a custom driveshaft, but I noticed his pinion is angled a bit downwards, could that cause vibration?
Could it be gear mesh?
I was able to find his factory TDC mark was nowhere near TDC, so I found and marked true TDC so we could get his total timing to 36° and put an end to his detonation issues. Waiting on an FBO limiter plate to fully map it out.
Before that we have to address his crusty fuel system, though.
Car is a 74 Roadrunner. It's a mess, but he knows and still loves it. He is new to old Mopars but loves learning and has a great attitude, so I've been trying to help him get some of it sorted out.
Just weird it's so uniform.
Are these rockers pretty good?
Seems like I've heard mixed reviews over the years. They are late 80's- early 90's vintage I believe.
He was told the engine was a 1973 340 with roller rockers and a mild cam, actually it is a 70 340 with X-heads and these, Weiand Action Plus intake and the rest is still unknown, including cam brand and specs, pistons and whether it has been overbored. It's got a 5 speed Keisler Tremec tied to it with a 9-1/4. out of a truck with 4.10 gears. He is getting drive line vibration at highway speeds. It has a custom driveshaft, but I noticed his pinion is angled a bit downwards, could that cause vibration?
Could it be gear mesh?
I was able to find his factory TDC mark was nowhere near TDC, so I found and marked true TDC so we could get his total timing to 36° and put an end to his detonation issues. Waiting on an FBO limiter plate to fully map it out.
Before that we have to address his crusty fuel system, though.
Car is a 74 Roadrunner. It's a mess, but he knows and still loves it. He is new to old Mopars but loves learning and has a great attitude, so I've been trying to help him get some of it sorted out.
