153mm rod suppliers?
153mm rod suppliers?
I'm looking to build a 4G63 2.2L using 153mm rods. So far I can only find rod offerings from Callies and Oliver. Is anyone else making OTS 153mm rods?
Thanks
Thanks
I used Oliver rods in my last build and am leaning towards them. The Callies are very expensive (~$1250 from what I've found)
ended up going with another set of Oliver rods. They were in stock and I had them within 3 days once the order was placed.
Now I'm looking for pistons, with the 94mm crank and 153mm rods the wrist pin is in the same location as 88/156 and 100/150 motors, this gives a couple off the shelf options that should work for the motor. Shooting for 9.0:1 compression leaves me with a dish requirement of 15-17 cc depending on what the head CC's at and the HG gasket thickness.
Diamond racing has a nice -16.5cc dish piston that I am looking at, although I haven't notice many people running Diamonds?
Now I'm looking for pistons, with the 94mm crank and 153mm rods the wrist pin is in the same location as 88/156 and 100/150 motors, this gives a couple off the shelf options that should work for the motor. Shooting for 9.0:1 compression leaves me with a dish requirement of 15-17 cc depending on what the head CC's at and the HG gasket thickness.
Diamond racing has a nice -16.5cc dish piston that I am looking at, although I haven't notice many people running Diamonds?
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thanks,
Looking into the company a bit it seems like they have a large amount of prestige and experience.
I contacted them and they said that the pistons are built to order with 4wk leadtime. I'll probably send the head out first and get better CC numbers to see if I really need to go custom dish or not.
Looking into the company a bit it seems like they have a large amount of prestige and experience.
I contacted them and they said that the pistons are built to order with 4wk leadtime. I'll probably send the head out first and get better CC numbers to see if I really need to go custom dish or not.
You either need a custom dish, or to find an mfg that makes the piston for the 94/153 combo specifically because changes in stroke change compression (shorter stroke lowers compression, and vice versa).
My only issue with diamond is that they are a full round piston. Which is not as strong as modern design strutted pistons.
My only issue with diamond is that they are a full round piston. Which is not as strong as modern design strutted pistons.
You either need a custom dish, or to find an mfg that makes the piston for the 94/153 combo specifically because changes in stroke change compression (shorter stroke lowers compression, and vice versa).
My only issue with diamond is that they are a full round piston. Which is not as strong as modern design strutted pistons.
My only issue with diamond is that they are a full round piston. Which is not as strong as modern design strutted pistons.
the -16.5cc diamond piston should net me 8.9:1 - 9.2:1 based on HG thickness and my calculation assumptions.
I did wonder about the full round design of the diamond but the quoted weight is 306g which seems middle of the road. I'm not that concerned with absolute low weight of the components as I want to somewhat favor strength.
Motor is going to need to make 750-800 whp to beat my boss' 67 Chevelle
CD between the 100/150, 88/156, and 94/153 is the same. the only consideration is the dish volume which dictates your comp ratio. you can then fine tune your CR with various headgaskets.
the -16.5cc diamond piston should net me 8.9:1 - 9.2:1 based on HG thickness and my calculation assumptions.
I did wonder about the full round design of the diamond but the quoted weight is 306g which seems middle of the road. I'm not that concerned with absolute low weight of the components as I want to somewhat favor strength.
Motor is going to need to make 750-800 whp to beat my boss' 67 Chevelle
the -16.5cc diamond piston should net me 8.9:1 - 9.2:1 based on HG thickness and my calculation assumptions.
I did wonder about the full round design of the diamond but the quoted weight is 306g which seems middle of the road. I'm not that concerned with absolute low weight of the components as I want to somewhat favor strength.
Motor is going to need to make 750-800 whp to beat my boss' 67 Chevelle

For that power level I would not even think about a full round piston like the Diamond.








