swapping 4.3 to 5.7
Posted 10 January 2011 - 10:45 PM
Posted 13 January 2011 - 03:26 PM
In my opinion, NO! It's not worth it. The only reason I did my swap is A: My tired 4.3 was knocking for six long months before it finally died. And B: I got the L31 for Free. The 4.3 is a damn good engine and will handle anything you ask realistically ask your Z to do. The few benefits of the swap don't outweigh the many negatives....
The job it's self of swapping isn't that bad. SBCs fit in S10s really well, but matching parts from different manufacturers to get a working combination can be a real pain in the dick. (IE: Company A makes the best headers, but they can only be used with mounts from company C. But Company C's mounts sit the engine too low and and put the oil pan too far into the diff. Company B makes and awesome mount but everyone's headers interfere with them.)
Don't get me wrong though, as easy as the swap is....it's not for a novice who thinks since they can change their own oil they can undertake this job with a Wal-Mart socket set.
And it's not fair to ask about the costs of swaps, if you buy everything brand-fucking-new and don't cut corners you will be looking over 10K. If you buy everything from a salvage, used, make your own shit, etc. Then it can be done for around $1500 (according to local swap/trade prices)
Posted 13 January 2011 - 05:35 PM
I'm about 4k into mine so far and now I need to backtrack and have the lower end rebuilt. REBUILD FIRST if you're putting in a salvage engine. My mistake will likely add another 2-3k.
Posted 13 January 2011 - 09:09 PM
Posted 14 January 2011 - 05:09 PM
I guess mine is probably closer to 3k, haven't really tallied it up yet. I kinda got shafted on my engine...$1,100 '97 5.7 with 90k on it, but I was desperate at the time, and it was all i could find locally. If I only knew then what I know now, I would have held out and looked longer...among other things.
Posted 15 January 2011 - 05:55 AM
Posted 15 January 2011 - 11:19 AM
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