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88Stanger · 05-21-2018, 08:15 PM

damn nice job so far! looks awesome. I just went from your start to here, very impressed. I too did similar and went the LS route also, but i did have a or question for you. When i bought my LS i bought used and it was either a 4.8 or 5.3. i asked how to tell the difference and i found that just about everyone says unless you know the vehicle it came from, you take the heads off and if the pistons are flattop with a small dimple, it is a 4.8, if they are dished a small bit it is a 5.3. I got mine, opened it up and it was a 4.8. so i bought a kit from WS6Store for a 5.3 but with true flattop pistons like the 4.8's and then a crank and rods for a 5.3. I only bring this up because the pic of of the motor early on shows the flattop pistons like in a 4.8 stock but you called it a 5.3. I just know i was surprised with mine, hoping yours is truely a 5.3.

05-21-2018, 08:15 PM	#190
88Stanger Registered User Join Date: Mar 2015 Location: Washington State Posts: 1,644	Re: sprint_9's 72 C10 Project damn nice job so far! looks awesome. I just went from your start to here, very impressed. I too did similar and went the LS route also, but i did have a or question for you. When i bought my LS i bought used and it was either a 4.8 or 5.3. i asked how to tell the difference and i found that just about everyone says unless you know the vehicle it came from, you take the heads off and if the pistons are flattop with a small dimple, it is a 4.8, if they are dished a small bit it is a 5.3. I got mine, opened it up and it was a 4.8. so i bought a kit from WS6Store for a 5.3 but with true flattop pistons like the 4.8's and then a crank and rods for a 5.3. I only bring this up because the pic of of the motor early on shows the flattop pistons like in a 4.8 stock but you called it a 5.3. I just know i was surprised with mine, hoping yours is truely a 5.3.