243 heads worth it?
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Launching!
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From: Morrison, Colorado
243 heads worth it? My Ls1 is out of my car right now getting reringed and i was wondering if the 243's are worth doing since i have everything apart? how much of a gain will i see from a stock set? my mods are torquer v2, lts, ported tb and a couple more odds and ends... i have found a couple sets for 500.00 and just wondering if its worth the money?
I also did the same thing your doing ,But I went with the full ls6 package cam ,heads, intake ,an undpulley str8 sleeper. My old motor went dead I was happy as hell to do the swap. But you know what I love about my package You will never see or hear me coming.
Thread Starter
Launching!
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From: Morrison, Colorado
Ok cool, i ment using the stock heads not the springs and stuff. I will be using my pushrods dual springs and retainers... Anyone know how much of a boost in power they will give me? 20-30 hp or am i hoping for too much?
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Thread Starter
Launching!
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Joined: Feb 2009
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From: Morrison, Colorado
Or would i be better off porting my ls1 heads? sorry i am just trying to get as many ponies out of my car on a tight budget lol... the only prob with the ls1 heads is a cross threaded header bolt from the last owner so that will need to be fixed... helicoil?
Good luck.
Thread Starter
Launching!
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From: Morrison, Colorado
I cant afford the cnc ported heads, i mean i can either do a 500.00 port job on 241's or go with some stock 243's for 500.00... unless you guys can think of a better way to go besides my 2 options, sorry this is my first build lol
Get some 799s, they were worth over 25 rwhp, and they dont cost 500. Although 500 is not bad for 243s. Didn't lose any low end, steady increase across the board. Look up my dyno graph in the dyno section. Also with a slipping clutch, so a few more may be in there. 391 to 417. Maybe 30 rwhp without the fudged stock clutch.
799s/243s=853s/241s Mine were off a truck w/40K miles and untouched. Just bolted them on.
No variances either. Same dyno, same ambient temp, time difference of a week.
DEFINITELY worth it
799s/243s=853s/241s Mine were off a truck w/40K miles and untouched. Just bolted them on.
No variances either. Same dyno, same ambient temp, time difference of a week.
DEFINITELY worth it
I would find some 243 or 799 at a good price, NOT $500!
I paid $150(I think) + my stock jacked up heads for 799s. Different cast is the only difference, as well as lightweight valves IF they came off of a Z06, and that is the only way I would pay $500 for a set of 243s
Thread Starter
Launching!
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From: Morrison, Colorado
I found the 243's on ebay they have been refurbed i guess, valves and everything reground and cleaned up... so far no luck on the 799's on ebay, what year trucks did they come off of? i will call some junkyards tomorrow