Ported/milled 241's or ported /big valve 706's
10-08-2010, 12:07 AM
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Ported/milled 241's or ported /big valve 706's I'm on a tight budget. So, my debate is this... I've got the 241's but I'm wanting to trade them for some 5.3 706's. Either will get a performance valve job and I've had good luck with home porting my own heads. Now, I'm thinking they have the same runner volume, but the 706 has a smaller 1.89 intake valve stock, but the smaller cc chamber for the raised comp.
On a stock piston Ls1 block... which will be safer with a high comp.(11-12:1 goal) n/a set up with a mild 230ish .600 lift cam. Would milling the 241's to 58-60cc bring the 2.00" valve too close to the piston(w/MLS gasket)? Or is the money not werth the purchase of the 2.02-2.05 valve for the 706 head over the milled stock valve 241's....UHHH.
Please help..
On a stock piston Ls1 block... which will be safer with a high comp.(11-12:1 goal) n/a set up with a mild 230ish .600 lift cam. Would milling the 241's to 58-60cc bring the 2.00" valve too close to the piston(w/MLS gasket)? Or is the money not werth the purchase of the 2.02-2.05 valve for the 706 head over the milled stock valve 241's....UHHH.
Please help..
10-09-2010, 09:34 AM
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I'm on a tight budget. So, my debate is this... I've got the 241's but I'm wanting to trade them for some 5.3 706's. Either will get a performance valve job and I've had good luck with home porting my own heads. Now, I'm thinking they have the same runner volume, but the 706 has a smaller 1.89 intake valve stock, but the smaller cc chamber for the raised comp.
On a stock piston Ls1 block... which will be safer with a high comp.(11-12:1 goal) n/a set up with a mild 230ish .600 lift cam. Would milling the 241's to 58-60cc bring the 2.00" valve too close to the piston(w/MLS gasket)? Or is the money not werth the purchase of the 2.02-2.05 valve for the 706 head over the milled stock valve 241's....UHHH.
Please help..
On a stock piston Ls1 block... which will be safer with a high comp.(11-12:1 goal) n/a set up with a mild 230ish .600 lift cam. Would milling the 241's to 58-60cc bring the 2.00" valve too close to the piston(w/MLS gasket)? Or is the money not werth the purchase of the 2.02-2.05 valve for the 706 head over the milled stock valve 241's....UHHH.
Please help..
