AMS 2.3rr and Cosworth 2.2 short block
a little...yeah right the cosworth is 9 grand but its a hell of a block and quality (not ssaying that ams isn't) and you can rev it to alot more than the 2.3 prob till like 9,000
guess u missed the RR ,in that its 8k so ya 9k would be a littloe more ,and it also revs out pretty high for 2.3 block
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A basic comparison should be straightforward.
Both appear to use a new block, as I see no core request for AMS' part.
Both obviously are fitted with quality pistons, Ross for AMS and Cosworth's own design for themselves. Cosworth wants over $1000 for their piston set.
Bearings would be ACL for Cosworth, Clevite for AMS. AMS' rotating assembly parts look to be especially engineered for mass reduction.
Both describe a 'custom billet crank' with 94mm stroke. Cosworth wants $3300 for their crank, AMS does not list the one they use individually. The Cosworth crank is expensive, and I would expect nothing less than a domestically-made crank for that price. AMS describes theirs as a billet crank as well. Eagle lists a forged (not billet) 94mm crank that I believe is Chinese made, and lists for $873, so I would expect neither Cosworth nor AMS to use this crank given the cost and the parts descriptions. You may want to ask both where their crank is actually made (not finished), and in the case of AMS, what it costs individually. Not so much that it really matters aside in what you get for what you give.
Cosworth's connecting rods are described as forged (not billet), and are listed at $1000 per set. AMS' rods are described as billet, and are not individually listed. AMS gives a rod bolt upgrade as well. Again, at $1000 for a set of Cosworth's forged rods, I would definitely expect something other than a Chinese made rod, so you may want to inquire specifically. For the sake of comparison, $1000 is what it costs for a set of custom, domestically made billet rods.
AMS' assembly includes, new oil pump, new water pump, and machined 'race' balance shaft, and AMS o-rings the deck. All together, this is somewhere north of $500 in value.
The AMS assembly is listed at $8000, Cosworth at $9300.
This is about as far as it goes from this vantage point. You'll have to call with very specific questions to obtain more info.
Both appear to use a new block, as I see no core request for AMS' part.
Both obviously are fitted with quality pistons, Ross for AMS and Cosworth's own design for themselves. Cosworth wants over $1000 for their piston set.
Bearings would be ACL for Cosworth, Clevite for AMS. AMS' rotating assembly parts look to be especially engineered for mass reduction.
Both describe a 'custom billet crank' with 94mm stroke. Cosworth wants $3300 for their crank, AMS does not list the one they use individually. The Cosworth crank is expensive, and I would expect nothing less than a domestically-made crank for that price. AMS describes theirs as a billet crank as well. Eagle lists a forged (not billet) 94mm crank that I believe is Chinese made, and lists for $873, so I would expect neither Cosworth nor AMS to use this crank given the cost and the parts descriptions. You may want to ask both where their crank is actually made (not finished), and in the case of AMS, what it costs individually. Not so much that it really matters aside in what you get for what you give.
Cosworth's connecting rods are described as forged (not billet), and are listed at $1000 per set. AMS' rods are described as billet, and are not individually listed. AMS gives a rod bolt upgrade as well. Again, at $1000 for a set of Cosworth's forged rods, I would definitely expect something other than a Chinese made rod, so you may want to inquire specifically. For the sake of comparison, $1000 is what it costs for a set of custom, domestically made billet rods.
AMS' assembly includes, new oil pump, new water pump, and machined 'race' balance shaft, and AMS o-rings the deck. All together, this is somewhere north of $500 in value.
The AMS assembly is listed at $8000, Cosworth at $9300.
This is about as far as it goes from this vantage point. You'll have to call with very specific questions to obtain more info.
I believe Carrillo builds the rods for Cosworth. we should research that...
I know that Cosworth blocks are revved up to 10,000rpm with no ill effects.
Nothing against AMS, i love them as a company but if i was to spend that money i would go for Cosworth. Trust them no questions asked because of YB Ford Cosworth background...
People with 2.2 Cossie strokers would chime in for feedback...
I know that Cosworth blocks are revved up to 10,000rpm with no ill effects.
Nothing against AMS, i love them as a company but if i was to spend that money i would go for Cosworth. Trust them no questions asked because of YB Ford Cosworth background...
People with 2.2 Cossie strokers would chime in for feedback...
Much too expensive now, and rarely necessary. If I found myself contemplating something with a street car where steel rods will not suffice, I'd need to reevaluate my planning.