COMPRESSION HEIGHT GUIDE The following chart is designed to determine the required compression height when choosing cubic inch displacement, cyl- inder bore, stroke, and rod length. Often, identical displacement engines may be assembled in several variations, depend- ing on the chosen rod length and compression height. For example, a Small Block Chevy 383 CID engine may be assem- bled in three different rod length/compression height variations using a 5.565" rod/1.561" comp. ht., 5.700" rod/1.433" comp. ht., or a 6.000" rod/1.130" comp. ht. Many more engine variations may be created other than what is listed, howev- er, those listed are readily available using “off-the-shelf” pistons, connecting rods, and crankshafts. Cubic Inch Rod Length Bore Stroke Deck Height Compression Height Chevy Small Block 283 5.700" 3.875" 3.000" 9.025" 1.805" 305 5.700" 3.736" 3.480" 9.025" 1.561" 305 6.000" 3.736" 3.480" 9.025" 1.261" 327 5.700" 4.000" 3.250" 9.025" 1.678" 327 6.000" 4.000" 3.250" 9.025" 1.385" 334 5.565" 3.736" 3.750" 9.025" 1.561" 334 5.700" 3.736" 3.750" 9.025" 1.433" 350 5.700" 4.000" 3.480" 9.025" 1.561" 350 6.000" 4.000" 3.480" 9.025" 1.265" 350 6.200" 4.000" 3.480" 9.025" 1.061" 353 6.000" 4.125" 3.250" 9.025" 1.380" 366 5.700" 4.000" 3.600" 9.025" 1.490" 377 5.700" 4.125" 3.480" 9.025" 1.261" 383 5.565" 4.000" 3.750" 9.025" 1.561" 383 5.700" 4.000" 3.750" 9.025" 1.433" 383 6.000" 4.000" 3.750" 9.025" 1.130" 400 5.565" 4.125" 3.750" 9.025" 1.561" 400 5.700" 4.125" 3.750" 9.025" 1.433" 400 6.000" 4.125" 3.750" 9.025" 1.130" Chevy Big Block 396 6.135" 4.094" 3.760" 9.800" 1.765" 402 6.135" 4.125" 3.760" 9.800" 1.765" 427 6.135" 4.250" 3.760" 9.800" 1.765" 434 6.135" 4.125" 4.000" 9.800" 1.645" 454 6.135" 4.250" 4.000" 9.800" 1.645" 489 6.135" 4.250" 4.250" 9.800" 1.520" 489 6.385" 4.250" 4.250" 9.800" 1.270" 489 6.535" 4.250" 4.250" 10.200" 1.520" 502 6.135" 4.466" 4.000" 9.800" 1.645" 540 6.385" 4.466" 4.250" 9.800" 1.270" Chrysler Small Block 318 6.123" 3.910" 3.310" 9.578" 1.810" 340 6.123" 4.040" 3.310" 9.599" 1.840" 360 6.123" 4.000" 3.580" 9.599" 1.675" 408 6.123" 4.000" 4.000" 9.599" 1.465" Chrysler Big Block 383 6.358" 4.250" 3.380" 9.980" 1.908" 400 6.358" 4.342" 3.380" 9.980" 1.908" 426 6.860" 4.250" 3.750" 10.725" 1.949" 440 6.768" 4.320" 3.750" 10.725" 2.067" 450 6.358" 4.342" 3.750" 9.980" 1.722" 450 6.768" 4.342" 3.750" 9.980" 1.327" 498 6.768" 4.342" 4.150" 10.725" 1.722" 501 6.768" 4.342" 4.250" 10.725" 1.722" Ford Small Block 289 5.155" 4.000" 2.870" 8.206" 1.608" 302 5.090" 4.000" 3.000" 8.206" 1.608" 302 5.400" 4.000" 3.000" 8.206" 1.298" 331 5.400" 4.000" 3.250" 8.206" 1.170" 347 5.400" 4.000" 3.400" 8.206" 1.090" 351W 5.956" 4.000" 3.400" 9.500" 1.774" 351W 6.580" 4.000" 3.500" 9.500" 1.160" 351W 5.956" 4.000" 3.500" 9.500" 1.774" 372W 6.200" 4.000" 3.640" 9.500" 1.440" 393W 5.956" 4.000" 3.850" 9.500" 1.608" 408W 6.000" 4.000" 4.000" 9.500" 1.490" 408W 6.125" 4.000" 4.000" 9.500" 1.365" 408W 6.200" 4.000" 4.000" 9.500" 1.280" 408W 6.250" 4.000" 4.000" 9.500" 1.240" 416W 6.123" 4.000" 4.075" 9.480" 1.310" 416W 6.200" 4.000" 4.075" 9.500" 1.251" Ford Big Block 429 6.605" 4.360" 3.590" 10.320" 1.900" 460 6.605" 4.360" 3.850" 10.320" 1.772" 520 (SVO 514) 6.200" 4.390" 4.300" 10.320" 1.545" 521 6.700" 4.360" 4.300" 10.320" 1.450" 521 6.800" 4.360" 4.300" 10.320" 1.350" 545 6.700" 4.360" 4.500" 10.320" 1.350"
2021-22 ENGINE BUILDER CATALOG 646
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