Freshing up a pair of 420's gen4
#1
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Location: wisconsin
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Freshing up a pair of 420's gen4
The engines are stock 420 gen4 big blocks ,Both engines need cams, is there a better updated cam Then using the stock ultradyne 288/296 -h12 cam.
231/239
550/575
112
I was thinking since that's a 25 year old setup there could be something better ,I talked to someone at Bullet he couldn't answer that question but he could grind that same cam in about 2-3 weeks out
I want to stay w/ the hyd flat tappet cam
Thanks
231/239
550/575
112
I was thinking since that's a 25 year old setup there could be something better ,I talked to someone at Bullet he couldn't answer that question but he could grind that same cam in about 2-3 weeks out
I want to stay w/ the hyd flat tappet cam
Thanks
#3
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If you can swing it. Look into getting a set of AFR 265 heads and talk to Bob Madera about cam selection. First off the head will pull 150lbs out of the back of you boat which is a good thing. They flow much better than anything you could do to your current heads which may have cracked exhaust seats. Talk to Bob he is a wealth of knowledge.
http://marinekineticsonline.com/
http://marinekineticsonline.com/
#4
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I just want to change cams some people say that UD cam was to big for the 420 it hurt performance , I can get the same cam built at Bullet just don't want wait 3 weeks if there is something better out there
#7
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iTrader: (3)
http://crane.carshopinc.com/product_...d/16042/132561
I believe lunati is carrying that original 440HP cyclone cam, and possibly "elgin" cams. Calling them would be a good idea.
http://www.summitracing.com/parts/lu...make/chevrolet