71 Duster 360 turbo build
When I pulled the intake manifold it was clear where the exhaust had been blowing up into the valve cover(sorry no pictures), and into the valley. Pulled the piston thinking that I’d just slap a $70 replacement in, but it was worse than I thought. Piston material was everywhere, and my oil was sandpaper. Every bearing ruined.
At this point I was certainly missing the great fuel distribution of EFI, and knock sensor from the Subaru. AFR’s were great, but #7 and #8 were lean and detonating.
Not yet decided on my eventual full build, I sent the block to the machine shop to be cleaned, and grabbed a cheap($100) set of forged factory compression pistons someone had laying around.
When I pulled the intake manifold it was clear where the exhaust had been blowing up into the valve cover(sorry no pictures), and into the valley. Pulled the piston thinking that I’d just slap a $70 replacement in, but it was worse than I thought. Piston material was everywhere, and my oil was sandpaper. Every bearing ruined.
At this point I was certainly missing the great fuel distribution of EFI, and knock sensor from the Subaru. AFR’s were great, but #7 and #8 were lean and detonating.
Not yet decided on my eventual full build, I sent the block to the machine shop to be cleaned, and grabbed a cheap($100) set of forged factory compression pistons someone had laying around.