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So I'm getter closer to doing the winter mods, and am wondering how feasible is it to change the cam in the boat? I have plenty of room in front to pull the cam out, but my concern is the timing cover and oil pan joint.
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If it was me, I'd pull the engine. Way easier to install and degree the cam.
I'm sure it's possible with it in the boat, but my back hurts just thinking about it. |
The timing cover is difficult to get off and even harder to reinstall without removing the pan. I would pull the engine as well unless you like oil in the bilge
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I bet in the end pulling it out will be half the work as trying to put it in while in the boat. I don't have a tree to winch it out from but I can probably get a tow truck to boom it out.
Would you all recommend new lifters or springs? I saw a mention of using lifters with a tie bar is recommended with the cam but if it's just marketing I'd rather stay with the Chevy oem units as I know they work and fit. I don't know the spring rate but the specs list them as good for .700 lift and the 525efi cam shows .610/.632 |
Originally Posted by Black Baja
(Post 4489821)
You shouldn't have any issues with idle quality and the current cam you have. The 525 efi cam would work really well with that setup and it responds very well to boost. 236/244 @.050 114 lsa. I have one coming out of a motor in the next week. Johnson lifters as well. Cam does have a flat nose for mark iv block...
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Originally Posted by MILD THUNDER
(Post 4489842)
I like the 525 EFI cam or similar
Since you tow tubers and wake boarders, I'd look into selling the centrifugal, and picking up a 250 blower. Couple that to those oval ports , should make more than enough low end, and good top end as well. Throttle actuation and response down low with a roots is very good. |
Originally Posted by getrdunn
(Post 4526485)
I've got your previously owned bm250' with carbs and intakes with all the hdw if anyone is looking. Will be going on swap.
I'd love a 250 roots but does it come with spare drives, lol. Square port manifolds? Ps, I got the flame arrestor - thanks! |
Originally Posted by Baja Rooster
(Post 4526440)
Do you have a 525EFI cam collecting dust? I'm getting ready to yank the engine.
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^^^^^forgot to mention,if you go with a cam with above .580 lift you need to make sure the stock lifter is not making contact with the dog bone that keeps the lifter straight,some cam,s with more lift will work,it depends on the base circle of the cam.with the 168741 you would need to go with a retro fit lifter.
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Currently the lifters don't have a tie bar, and when I got new pushrods they were the ones sold for the "retrofit" set up. Bear with me as I barely know what the f*** I'm doing with V8s. I was hoping to not need new lifters as I know that these fit and work and don't want to contend with the issues everyone else is having.
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