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Comp XR265HR for a 4.8?

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Old 04-27-2016, 10:02 AM
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Default Comp XR265HR for a 4.8?

What's the thoughts on this cam for my trucks 4.8? Stock size tires (30 tall), 3.73 gear, stock trans/converter with corvette servo. I'm putting fresh 862 heads on it with LS6 springs with a cam change and wonder if this would be a good cam for daily driver plus to pull my 18ft bass boat on occasion? Exhaust is currently stock with a Flowmaster muffler in place of the stock one and Magnaflow Hi-Flow cats on it but stock manifolds. I plan on putting long tube headers on it shortly after the cam change. A wholesale warehouse I buy parts from has this in stock so I'm considering it.

Also would the stock pushrods be OK? I plan on shaving a few thousandths off the heads when I have them freshened.
Old 04-27-2016, 10:32 AM
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Use pushrod length checker for your pushrods.
That's a great cam for what you're looking to do with it, just installed one in my truck and couldn't be happier.
Old 05-11-2016, 07:31 AM
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Did you change the torque converter or stick with the stock one? I just got a header kit from DNA off Ebay and hopefully around the end of this month I'll be making the change.
Old 05-12-2016, 08:51 AM
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Stock for now. It's not bad... definitely no worse on the bottom end than the stock cam + stock exhaust. Will eventually be adding a 2800 stall.

(this is with stock 3.73 gears)
Old 05-12-2016, 08:55 AM
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I would suggest doing the cam and LT headers + y pipe at the same time. You don't need to, but it makes it easy to only tune it once.

Also... I didn't clarify but definitely replace your pushrods with hardened ones. Stock pushrods aren't a good idea. Check your required length with pushrod length checker.
Old 05-12-2016, 12:57 PM
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I went ahead and bought a header/Y pipe kit off Ebay so I plan on doing it all at once. I'll probably use the stock pushrods for start up but replace them once I check the length as I bought a length checker. It's my daily driver and the only vehicle I have so I'll be borrowing a friends ride for 2 days while I do the swap. Pushrods I can change in probably an hour.
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