Just thought i throw this out there my regal has the 3.8 and Astro van 4.3 are dime a dozen(s-10 to)Not looking for lots of HP but I think this would a good swap better performance and still have decent milage.
3.8 to a 4.3
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They used the 4.3 V6 in later Monte Carlos and I *think* the Grand Prixs as well. Most of these, if not all, were fuel injected. You will need to update the fuel lines, add the intank fuel pump w/ internal baffel and get the sending unit (discontinued). A buddy of mine is doing a TPI setup in his 87 MC-SS and bought a NOS sending unit (read $$$$).
Otherwise, the swap is the same as a SBC V8. The big difference is that the motor mounts go back further.
Otherwise, the swap is the same as a SBC V8. The big difference is that the motor mounts go back further.
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