help needed!!!

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Dec 1, 2008 | 01:03 AM

#11

viciousknid

Where's the Beef?

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From: Dover, Oklahoma

Quote:

Originally Posted by silveradol33

My L33 5.3 came with the 243 heads and its a nice setup.

L33 has Flat top pistons while a regular 5.3 will have Dish. So there would be a loss in compression.

Seems to me you would want those heads to run Forced Induction.

Dec 1, 2008 | 07:41 AM

#12

redsilverado05

TECH Apprentice

Joined: Jan 2007

Posts: 353

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From: Perry FL

Quote:

Originally Posted by blklime02

well idk the casting number yet..but ill check it be4 i get them...and i think they are milld already...the guy thats selling them to me had them on a 5.3 also but he said he wanted to change them because he was going to supercharge it and something bout the compresion....

Well check and find out if he's already had them milled because if he has then I would definately go for them because thats a good deal on a good set of heads. If you do that and a cam of your choice you'll love the results once you have it tuned.

Dec 1, 2008 | 04:50 PM

#13

blklime02

Thread Starter

Launching!

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From: Houston TX

well yea ill be sure to check them thanks for the help....but wat cam would be good to pair it with....i dont want the idle to be too rough..but i do want it to be noticed..lol

Dec 1, 2008 | 05:31 PM

#14

redsilverado05

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From: Perry FL

Try something along the lines of a 220 or 215 duration with about a 550 or so lift and a 114 to 115 LSA. Should be enough to notice you have an after market cam but not shake it off the motor mounts after 15,000 miles either.