4.1 buick block

[blackv6]

r the 4.1 buick blocks worth anything. Came across one wondering if its worth the effort

 

[charlief1]

Yes and no. It's limited to about 500 HP but it will produce more torque. Just remember that cubic inches will make more power but the block will limit you.

 

[Nick Micale]

I have built a few 4.1 engines for customers, and a couple for my personal use, and absolutely love their awesome low end torque!

Before the alum block that I now run in my race car, I had a built 4.1 that ran consistent low 10's and was very reliable. With the car weight and build at the time, the HP at the flywheel approached 700 HP with a stock crank.

I am ready to build a production 4.1 again to run high 9's which it should do with a forged stroker crank and well ported TA alum heads fitted with a HPQ 70BB turbo, which will put the power needed slightly over 700 HP.

For a street build, I always prefer a 4.1 over a 3.8.

 

[cooled85T]

Love my 4.1 block. Run low tens very easily with my sig setup. Awesome on the street too. Lag was like night and day compared to my 3.8.

 

[85typet]

which 4.1 is the best?

which 4.1 block would be the best> which casting ?

 

[dlafont]

291 block.