Small Block Ford Some parts are not legal for sale or use in California or other states with similar laws/regulations—see pg. 2 for details. WARNING: For Proposition 65 information, see pg. 2 EFI Heat Spacer Kits for Ford 5.0L/351W CNC-machined in the USA from premium phenolic material, Trick Flow EFI heat spacers fit between the upper and lower intakes to create a heat flow barrier. This keeps the air in the upper intake cooler and denser. In addition, they will allow the use of taller valve covers by raising the upper intake. Trick Flow EFI spacers are available in 3/8" and 1" thick versions. Gaskets and longer mounting bolts are included. 1994-95 Mustangs will require modifications for hood clearance. Specifications Part Numbers Engine Size Bore Stroke Rod Comp. Height Comp. Ratio Pin Dia. TFS-51404010 306 (302) 4.030" 3.000" 5.090" 1.610" 8.0:1 .912" TFS-51404000 306 (302) 4.030" 3.000" 5.090" 1.600" 10.0:1 .912" TFS-51404332 331 (302) 4.030" 3.250" 5.400" 1.165" 10.0:1 .927" TFS-51404111 347 (302) 4.030" 3.400" 5.400" 1.090" 10.0:1 .927" TFS-51404110 347 (302) 4.030" 3.400" 5.400" 1.090" 9.0:1 .927" TFS-51404221 358 (351W) 4.030" 3.500" 5.955" 1.786" 10.0:1 .912" TFS-51404010 393 (351W) 4.030" 3.850" 5.955" 1.610" 10.0:1 .912" TFS-51404000 393 (351W) 4.030" 3.850" 5.955" 1.610" 12.0:1 .912" TFS-51404331 408 (351W) 4.030" 4.000" 6.200" 1.290" 10.0:1 .927" TFS-51404330 408 (351W) 4.030" 4.000" 6.200" 1.290" 9.0:1 .927" Trick Flow by Wiseco Twisted Wedge ® Forged Piston Sets for Small Block Ford Trick Flow’s lightweight forged pistons are fully skirted and precision-machined from premium aluminum alloy. They feature oversized valve reliefs, precision-fit wrist pins, and Spirolox retainers. Trick Flow pistons are designed to perfectly match the unique chamber and valve angles of the Twisted Wedge heads. They’re available with a choice of compression ratios as low as 8.0:1 for supercharged Ford applications. All pistons use ring sets with a 1/16" top ring, 1/16" second ring, and 3/16" oil control ring. Sold in sets of 8. NOTE: Compression ratios are based on 61cc combustion chamber heads. 5.0L H.O. Heat Spacer Kits, 1986-93 TFS-51520001 Spacer, 3/8", each TFS-51520002 Spacer, 1", each 5.0L H.O. Heat Spacer Kits, 1994-95 TFS-5152SN01 Spacer, 3/8", each TFS-5152SN02 Spacer, 1", each 5.0L Ford Truck Heat Spacer Kits TFS-51520003 Spacer, 3/8", each TFS-51520004 Spacer, 1", each Holley Manifold Heat Spacer Kits TFS-51520005 Spacer, 3/8", each TFS-51520006 Spacer, 1", each Trick Flow StreetBurner® and Track Heat® Spacer Kits TFS-51520007 Spacer, 3/8", each TFS-51520008 Spacer, 1", each Trick Flow R-Series Spacer Kits TFS-51520009 Spacer, 3/8", each TFS-51520012 Spacer, 1", each Edelbrock Performer 5.0L RPM II Spacer Kits TFS-51520021 Spacer, 3/8", each TFS-51520022 Spacer, 1", each Edelbrock Victor 5.0L Spacer Kits TFS-51520015 Spacer, 3/8", each TFS-51520016 Spacer, 1", each Ford Racing Cobra Heat Spacer Kits TFS-51520017 Spacer, 3/8", each TFS-51520018 Spacer, 1", each Ford Racing GT-40 Heat Spacer Kits TFS-51520019 Spacer, 3/8", each TFS-51520020 Spacer, 1", each TFS-51520008 Ford Racing GT-40/Cobra 1986-93 Ford 5.0L Ford 5.0L Truck Trick Flow StreetBurner/Track Heat Trick Flow R-Series Edelbrock Performer 5.0L RPM II Edelbrock Victor 5.0L TFS-51404000 TFS-51404330
