frenchsquared

I am getting a 402 out of a 72 Nova to put in a 73 Nova.
I would like to add some forged parts to handle some nitrous.

I figure I need at least forged pistons and probably a complete forged kit.

Issue is I cannot find them online.

I think the Engine is a Mark IV Big Block 6.6/402.
Does anyone make forged parts for it?

Thanks.

pancherj

It's a .030" over 396...search for 396 parts, not 402 parts. When I did my 402, it was determined to be safe to bore and stroke to 489. You need to have the bores checked though. Not all of them can safely go to 4.28" bore. The 4.25" crank fit with no issues.

https://www.summitracing.com/search/...-size/6-5l-396

frenchsquared

Thanks