Closed-deck FA20 ready to be dropped in !!

[celek]

Originally Posted by SPCorBUST

Is there any reason to update to a closed deck sub 500hp?

Not really 500 HP is about the limit before sleeves start to wiggle causing head gasket failure under extreme abuse

Originally Posted by Irace86

Adding to that...

Maybe I missed the answer that was said already, but why do this? Is this stronger than sleeves, for different setups than sleeves, necessary for certain hp goals, the weak link in this motor?

Stock sleeves have held to 800 HP but they will wiggle see above quote

Originally Posted by SPCorBUST

Not saying it's the only reason, but besides supporting higher horsepower I've heard that sleeves have a tendency to drop.

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Stock or after market?
Stock will not drop, aftermarket sleeves only drop when improperly installed, commonly with an epoxy or glue that shrinks, you are not supposed to do that as the liquid adhesive creates an air pocket and and holds the sleeve up then it drops.

Originally Posted by Irace86

Is the combustion chamber a weak point?

I have seen stock sleeves exceed 750 WHP, as stated above partially 500-600 they start to wiggle causing gasket failure. Closed deck will fix the wiggle. But find a transmission to support it is the real problem here