I purchased this 383/510 back in 2004 and now have it in an 85 Blazer with 5 speed. 13 year old motor runs better than ever! Fastest combo I’ve ever had. Proformance Unlimited delivers QUALITY performance.
![](https://www.proformanceunlimited.com/wp-content/uploads/2019/05/blazer-at-home-002_5873.jpg)
![](https://www.proformanceunlimited.com/wp-content/uploads/2019/05/blazer-at-home-003_9640.jpg)
I purchased this 383/510 back in 2004 and now have it in an 85 Blazer with 5 speed. 13 year old motor runs better than ever! Fastest combo I’ve ever had. Proformance Unlimited delivers QUALITY performance.