317 vs 243's for a 5.3L TC78 setup
#1
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I'm building a 5.3L TC78 turbo nissan 240sx. I have a 216/221 .580/.580 cam and I would like to throw some take off heads on it. I will be running E85 all the time so I don't want the compression to low to help the little 5.3L spool.
I was thinking about buying some 317's and having them milled down to 64-66cc.
What would the CR be for a stock 5.3L and 243's compared to 317's?
Any suggestions on budget take off heads for my setup will be appreciated.
I was thinking about buying some 317's and having them milled down to 64-66cc.
What would the CR be for a stock 5.3L and 243's compared to 317's?
Any suggestions on budget take off heads for my setup will be appreciated.
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I agree with johnv i just ordered arp head bolts so i can swap out to a set of 243's i have laying around. I believe the comp will end up around 9.1to1 or somewhere there abouts correct me if im wrong.
#5
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Thanks, so the 317's are out. It's either buy some take off 243's or keep the 5.3"s for now.
I have some 241's but I'm not sure what cc they are and if they would be any better than the stock 5.3's for my application. I want to keep it around 9.0-9.5 CR with E85 and a TC78.
I have some 241's but I'm not sure what cc they are and if they would be any better than the stock 5.3's for my application. I want to keep it around 9.0-9.5 CR with E85 and a TC78.