5.3 block machined to a.....????
06-09-2013, 10:50 PM
#1
5.3 block machined to a.....???? Well to make a long story short I tried doing a 5.3 build for my 2001 T/A. Well with the amount of rust in the cylinders its been decided to have the block machined. The biggest I was told that block can be taken to is 383? Also what do you guys then would be ideal between stock and there?
I am using a 76mm turbo with a full fuel system and everything to make this scream. It is not a drag car just going to be a fast street car with occasional track time a mostly street driven.
Would it be ideal to go in the middle for save cylinder wall clearance? Such as a 364 or 370?
I am using a 76mm turbo with a full fuel system and everything to make this scream. It is not a drag car just going to be a fast street car with occasional track time a mostly street driven.
Would it be ideal to go in the middle for save cylinder wall clearance? Such as a 364 or 370?
06-10-2013, 06:33 AM
#4
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The issue with 5.3's is there aren't too many off the shelf pistons for them. This is why people are boring them to 3.905" (347" w/ stock stroke or 383' with a 4" stroke). Plenty of choices when you go all the way out to ls1 size bore....but on the other hand this is eliminating the point of having a 5.3 IMO, that is the thicker cylinder walls.
06-10-2013, 11:25 AM
#7
Wiseco has 2 basic choices in the JY series. High compression and low compression for use with the stock rods.
Or, use an aftermarket rod with a a piston that falls in between.
Here is their info:
Note that compression ratio is based on a pretty small chamber size.
And, they do make a piston for a 4" stroke crank.
Ron
Or, use an aftermarket rod with a a piston that falls in between.
Here is their info:
Note that compression ratio is based on a pretty small chamber size.
And, they do make a piston for a 4" stroke crank.
Ron
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06-11-2013, 04:23 PM
#12
TECH Resident
Instead of putting the money towards machine work/pistons/rings/balancing/etc ($$$!) you could just get another 5.3 short block.
Get another short block and put the money you saved into heads and cam for the most benefit/dollar. As is, a 5.3 is good for up to 1000 rwhp with enough boost.
Get another short block and put the money you saved into heads and cam for the most benefit/dollar. As is, a 5.3 is good for up to 1000 rwhp with enough boost.
