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Intake Runner
Comb. Chamber
Plug Type
Intake Valve
Exhaust Valve
Valve Spring Dia./Type
Part No.
Description
DRT10110010F Bare Casting 180cc 49cc Angle 2.02" 1.60" DRT10310010P Bare Casting 180cc 64cc Angle 2.02" 1.60" DRT10310010PF Bare Casting 200cc 49cc Angle 2.02" 1.60" DRT10510020P Bare Casting 215cc 64cc Angle 2.05" 1.60" DRT10510020PF Bare Casting 215cc 49cc Angle 2.05" 1.60" N/A DRT10511123P Assembled 215cc 64cc Angle 2.05" 1.60" 1.550"/Solid/Roller DRT10710040P Bare Casting 230cc 64cc Angle 2.08" 1.60" N/A DRT10710040PF Bare Casting 230cc 49cc Angle 2.08" 1.60" N/A CNC-Ported DRT10970040 Bare Casting 227cc 72cc Angle 2.08" 1.60" N/A DRT10971143 Assembled 227cc 72cc Angle 2.08" 1.60" 1.550"/Solid/Roller Pro 1 Cylinder Heads For SB Chevy N/A N/A N/A N/A DRT11310010P Bare Casting 200cc 64cc Angle 2.02" 1.60" DRT11311112P Assembled 200cc 64cc Angle 2.02" 1.60" DRT11410010P Bare Casting 200cc 72cc Angle 2.02" 1.60" DRT11510020P Bare Casting 215cc 64cc Angle 2.05" 1.60" N/A DRT11511123P Assembled 215cc 64cc Angle 2.05" 1.60" 1.550"/Solid/Roller DRT11710040P Bare Casting 230cc 64cc Angle 2.08" 1.60" N/A DRT11711143P Assembled 230cc 64cc Angle 2.08" 1.60" 1.550"/Solid/Roller CNC-Ported DRT11970040P Bare Casting 227cc 64cc Angle 2.08" 1.60" N/A DRT11971143P Assembled 227cc 64cc Angle 2.08" 1.60" 1.550"/Solid/Roller Small Block Chevy Parts Kits >ÀÌ«>ÀÌÃÌÃVÕ`iÛ>ÛiÃ]ëÀ}Ã]ÃÌiiÀiÌ>iÀÃ]VÃ]}Õ`i«>ÌiÃ]ÃÌÕ`Ã] >`Ãi>ð-`>ÃiÌ«iÀVÞ`iÀ i>`° N/A 1.437"/Dual N/A Part No. Description Intake Runner Comb. Chamber Plug Type Intake Valve Exhaust Valve Valve Spring Dia./Type
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Valve And Spring Size
Seat Pressure
Coil Bind
Part No.
Description
DRT28223000 Parts Kit - (1) Head 2.05"/1.60", 1.550 Dual DRT28423000 Parts Kit - (1) Head 2.08"/1.60", 1.550 Dual
215 Lbs @ 1.900" 1.200" 215 Lbs @ 1.900" 1.200"
Replacement Components Part No.
Description
DRT21312050 DRT21391600 DRT32731030H DRT63121102 DRT63121212
SBC Intake Valve, 2.055"
SBC Exhaust Valve, 1.600", 11/32", 4.940" OAL
4-Bolt Interior Main Cap, SB Chevy “Little M", 2.45" Bearing Dia. Manganese Bronze Valve Guide, 5/16" Dia. x 2.100" x .502", Intake
Valve Guide, 11/32" Dia. x 2.000"
DRTVS2010
Valve Seat
Forged Pistons >`*ÃÌÃ>ÀivÀ}i`vÀ } ÃÌÀi}Ì ÓÈ£nÀ{äÎÓ>ÞÃ]>`>ÀivÕÞ >V i`Ì`iÛiÀÃÕ«iÀÀwÌ]wà ]>`Ãâ}°*ÃÌÃ>ÀiÃ`ÃiÌÃv i} Ì]V«iÌiÜÌ «ÀiÕnÈÓäÃÌiiÜÀÃÌ«Ã>`ÀÕ`ÜÀiÌÞ«iVð >`>ÃvviÀÃVÕÃÌ«ÃÌÃ]>Û>>LiLÞëiV>À`iÀ°*i>Ãi>ÃivÕÀ Ã>iëiÀÃÃvÀ>VÕÃÌ«ÃÌÀ`iÀvÀ]v`iÃÀi`°
Part No.
Description
Bore
Stroke
Rod Comp. Height Comp. Ratio Top Ring 2nd Ring Oil Ring
Small Block Chevy DIA11938-8 †
Race Dome 4.155" 4.000" 6.000" 1.000"
14.6:1 .043" .043"
3mm
* SB Chevy compression ratios based upon a 62cc combustion chamber. † SB Chevy compression ratios based upon a 64cc combustion chamber.
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2019 OPEN WHEEL PARTS AND ACCESSORIES
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