7.4/8.1 L GM 454/502 CID V-8

For Model 7.4L/8.1L GM 454/502 CID V8 Big Block $125.89	Pleasurecraft 454 Big Block Manifold (oem R028010) $333.92	Pleasurecraft Exhaust Riser Gasket (oem RM0099) $2.84
Exhaust Manifold Gasket (oem 3852472) (oem CHVA-47-0000) $12.43