Mazworx billet block.

phunk

Thing is, while a VR38 swap might at first appear to cost less than a billet HR/VHR block build (assuming the block became available for purchase and at a price that compares to other billet blocks)... the cost of being the guinea pig is at high risk of turning out far greater in the long run.

If I ever wind up doing a build on my Z, the only reason I wouldn't just skip to a VR38 is because it serves no use to the business. I couldn't make any products out of it that would be useful to others. But if I was on the consumer end of it, and I wanted a big power Z, VR38 seems (reluctantly) a better move if starting from scratch anyway.

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Spooler

If I only would have known back in 2018. LOL, the starting over is the sucky part. The chassis becomes a handful at 900whp+ on the street. That's why I kept the VQ. Very few folks have driven a 370z at that whp.