Convert 496Mag to 496Ho
09-21-2003, 08:04 PM
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Convert 496Mag to 496Ho
What would it take to convert a 496 (375hp) to a 496 (425) other than the Cam and ECM?
What do you thing it would cost and do you thing it would be worth the 50HP?
How much top end is 50hp worth?
What do you thing it would cost and do you thing it would be worth the 50HP?
How much top end is 50hp worth?
Last edited by bcoffield; 09-22-2003 at 08:46 AM.
09-22-2003, 10:46 AM
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Depending on serial number, you would also want to change the crank, but is not imperitive. The older models were cast and forged, for the base model and HO, respectively. Nowadays, they are all cast, so it's not something you need to worry about too much unless you plan more upgrades later. Other than that, you are correct with cam and ECU change.
50 hp might get you 3 to 4 mph, 5 tops.
50 hp might get you 3 to 4 mph, 5 tops.
09-22-2003, 02:19 PM
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bcolmsted - good point!
I priced the two parts. Cam $500, ECM $1400 as priced for both the 375Hp and 425Hp. What I did find out is what Baja Daze stated, depending on the serial number of the HO the crank shaft is either $5,608.89 or $1,203.44.
If it is true that the newer verisions are coming with the same crank than what are we paying 5K plus for?
I priced the two parts. Cam $500, ECM $1400 as priced for both the 375Hp and 425Hp. What I did find out is what Baja Daze stated, depending on the serial number of the HO the crank shaft is either $5,608.89 or $1,203.44.
If it is true that the newer verisions are coming with the same crank than what are we paying 5K plus for?
Last edited by bcoffield; 09-22-2003 at 06:00 PM.
09-22-2003, 02:35 PM
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bcoffield
I have a 375 hp and very happy with it...Most insurance rates go up considerably above 375 hp...As far as the cranks all the same now, I only have heard what bajadaze stated..
I`m not touching mine till warranty is up..
I have a 375 hp and very happy with it...Most insurance rates go up considerably above 375 hp...As far as the cranks all the same now, I only have heard what bajadaze stated..
I`m not touching mine till warranty is up..
09-22-2003, 06:07 PM
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If this is true that both the 375hp and 425 hp have the same crank than why the 5K difference in price. Is it just the fact that we will pay more for the extra ponies?
That's a $100 per pony...anybody else?
That's a $100 per pony...anybody else?
09-23-2003, 11:02 AM
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HO's having cast cranks?, not as of 03 models. Where merc get's there blocks
http://www.gm.com/automotive/gmpower...p_brochure.pdf
http://www.gm.com/automotive/gmpower...p_brochure.pdf
