Stock 440 Block Horsepower Limit

[Schober Motorsports]

8 years later from starting this thread... I have answers to share! Based on everything I've gone through with the different engine builds in the same car... I'mma call it 650 HP is the max a stock block can reliably handle and actually stay together. I wrote up an entire tech article on my website highlighting the different builds and what failed with each one. See link below if you'd like to check that out! Hope yall have a great day!

Factory 440 Blocks: Real HP Limits, Common Failures, and Lessons Learned

 

[stage3]

8 years later from starting this thread... I have answers to share! Based on everything I've gone through with the different engine builds in the same car... I'mma call it 650 HP is the max a stock block can reliably handle and actually stay together. I wrote up an entire tech article on my website highlighting the different builds and what failed with each one. See link below if you'd like to check that out! Hope yall have a great day!

Factory 440 Blocks: Real HP Limits, Common Failures, and Lessons Learned

i have a cure for that.......

FOR SALE - 505" mopar mega block wedge motor long block or short

 

[Cranky]

8 years later from starting this thread... I have answers to share! Based on everything I've gone through with the different engine builds in the same car... I'mma call it 650 HP is the max a stock block can reliably handle and actually stay together. I wrote up an entire tech article on my website highlighting the different builds and what failed with each one. See link below if you'd like to check that out! Hope yall have a great day!

Factory 440 Blocks: Real HP Limits, Common Failures, and Lessons Learned

Your lifting chain is too light.....