What can i expect?
02-20-2007, 09:42 PM
#1
What can i expect? What can iexpect for hp with 243 heads, and 234/242, .600/610 LSA 110+2. I got the cam for 200 bucks from a buddy, and the heads assembled with patriot dual gold valve springs for 600. What i am afraid of is the stock bottom end, and high rpms. What can the stock bottom end hold, and what can i spin the motor to? The car is a 99 trans am. Is it worth it to get a double roller timeing chain, and an LS6 pump. Just would like to know before i put all the stuff back together in the car. Is there anything else that i would be good to do while i doing heads and cam. Motor is torn down, just need a bigger air compress, to get the crank pulley off, or a better method. And i am on to pulling the cam out.
02-20-2007, 10:42 PM
#2
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Double roller is not needed, a LS2 chain is fine. I would get a new pump in there while your down there, good insurance. Some people upgrade to new rod bolts, some don't. I did, once again for insurance to spin 6800-7000.
As far as stock 243 heads, you should see at least 15 rwhp gains in the high rpm range over your 853's.
As far as stock 243 heads, you should see at least 15 rwhp gains in the high rpm range over your 853's.