I posted this question on a Australian forum. I guess since I'm a Yank, no one posted a response.
I'm sure someone here will respond.
bookworm007 in the 144-250 'Small Block" Six Performance Section is trying to find a conrod/piston combination that will give a better rod/stroke ratio for the US 250. One of the pistons he found was for a Jeep-Chrysler 4.7L Modular V8. It wouldn't work with the 6.4" SBC rods that he was wanting to use, but I was wondering if they could be used as a replacement for the ACL Racing pistons for the 4.1L Crossflow with 200 conrods.
Here are the specs:
Hypereutectic; 2 - 1.50mm Groove, 1 - 3.00mm Groove
DurOshield® skirt coated piston
Flat top - Availability of recessed pistons?
Bore: 93mm - Can be purchased in 0.5mm to 1mm overbore for up to a 3.70" bore.
Compression height: 1.24" - 0.071" taller than the 1.169" ACL
Pin Diameter: 0.946" - 0.0338" larger than the 0.9122 Ford.
The pistons are easily found in the US, however, I found an Australian eBay seller who sells them and states that he has all sizes available:
http://cgi.ebay.com.au/JEEP-PISTON-SET- ... 21001r2095
The compression height would seem to be the major concern with this piston. However, if a crossflow head with the larger combustion chamber was used, it could keep the CR down to a reasonable level. The tops of the pistons may be able to be machined to reduce that height.
I don't have access to a 4.1L Crossflow to measure the clearances or piston recess, so I can only speculate.
If they could be used, it would allow more 200 conrod retrofits.
What do you all think?
I'm sure someone here will respond.
bookworm007 in the 144-250 'Small Block" Six Performance Section is trying to find a conrod/piston combination that will give a better rod/stroke ratio for the US 250. One of the pistons he found was for a Jeep-Chrysler 4.7L Modular V8. It wouldn't work with the 6.4" SBC rods that he was wanting to use, but I was wondering if they could be used as a replacement for the ACL Racing pistons for the 4.1L Crossflow with 200 conrods.
Here are the specs:
Hypereutectic; 2 - 1.50mm Groove, 1 - 3.00mm Groove
DurOshield® skirt coated piston
Flat top - Availability of recessed pistons?
Bore: 93mm - Can be purchased in 0.5mm to 1mm overbore for up to a 3.70" bore.
Compression height: 1.24" - 0.071" taller than the 1.169" ACL
Pin Diameter: 0.946" - 0.0338" larger than the 0.9122 Ford.
The pistons are easily found in the US, however, I found an Australian eBay seller who sells them and states that he has all sizes available:
http://cgi.ebay.com.au/JEEP-PISTON-SET- ... 21001r2095
The compression height would seem to be the major concern with this piston. However, if a crossflow head with the larger combustion chamber was used, it could keep the CR down to a reasonable level. The tops of the pistons may be able to be machined to reduce that height.
I don't have access to a 4.1L Crossflow to measure the clearances or piston recess, so I can only speculate.
If they could be used, it would allow more 200 conrod retrofits.
What do you all think?