ENGINE GUIDE
Cu. In.
Liters
Years
Bore
Stroke
Main Dia.
Rod Dia.
Rod Length
Deck Ht.
Comp. Ht.
AMERICAN MOTORS 290
4.7 5.0 5.6 5.9 6.4 6.6
1966-69 3.750" 1970-81 3.750" 1967-69 4.080" 1970-91 4.080" 1968-70 4.165"
3.281" 3.438" 3.281" 3.438" 3.570" 3.680"
2.748" 2.748" 2.748" 2.748" 2.748" 2.748"
2.095" 2.095" 2.095" 2.095" 2.248" 2.248"
5.875" 5.875" 5.875" 5.875" 5.858" † 5.858"
9.058" 9.218" 9.058" 9.218" 9.058" 9.218"
1.512" 1.581" 1.512" 1.581" 1.560" 1.505"
304 343 360 390 401
1971-79
4.165"
† Due to an increase in deck height, 1970 390 engines used a 5.858" long rod, while ’68-’69 390 engines used a 5.790" long rod. BUICK V6 231 (GN/TT) 3.8 1986-87 3.800" 3.400" 2.500" 2.00" 6.350"
9.535"
1.485"
BUICK V8 Small Block 340
5.6 5.7
1966-67 3.750" 1968-81 3.800"
3.850" 3.850"
3.000" 3.000"
2.000" 2.000"
6.385" 6.385"
10.185" 10.185"
1.835" 1.835"
350
Big Block
400 401 425 430 455
6.6 6.6 7.0 7.0 7.5
1965-69 4.040" 1959-66 4.188" 1963-66 4.313" 1967-69 4.188" 1970-76 4.313"
3.900" 3.640" 3.640" 3.900" 3.900"
3.250" † 2.499" 2.499" 3.250" 3.250"
2.250" 2.250" 2.250" 2.250" 2.250"
6.600" 6.220" 6.220" 6.600" 6.600"
10.570" 10.015" 10.015" 10.570" 10.570"
2.151" 1.905" 1.905" 1.947" 1.955"
† 1965-66 400 engines used a 2.499" main dia., 1967-69 400 engines used a 3.250" main dia. CADILLAC V8 472 7.7 1968-74 4.304" 4.060" 3.250"
2.500" 2.500"
6.370" 6.370"
10.814" 10.814"
2.020" 1.900"
500
8.2
1970-76 4.304"
4.304"
3.250"
CHEVROLET Chevy V6 262
4.3
1985-14
4.00"
3.48"
2.250"
2.100"
5.700"
9.025"
1.565"
Chevy Small Block V8 GEN I, GEN II 1955-98 262 4.3 1975-76 3.671"
3.109" 3.000" 3.000" 3.484" 3.000" 3.000" 3.000" 3.484" 3.250" 3.250" 3.250" 3.484" 3.662" 3.750" 3.622" 3.622" 3.622" 3.62" 3.622" 3.62" 3.62" 3.62" 4.000"
2.299" 2.299" 2.299" 2.299" 2.299" 2.299"` 2.449" 2.449" 2.449" 2.299" 2.449" 2.449" 2.449" 2.649" 2.449" 2.559" 2.559" 2.559" 2.559" 2.559" 2.559" 2.559" 2.559" 2.559" 2.559" 2.559" 2.559" 2.497" 2.497" 2.497" 2.749" 2.749" 2.749" 2.749" 2.749" 2.749" 2.749" 2.749" 2.749"
2.000" 2.000" 2.000" 2.000" 2.000" 2.000" 2.100" 2.100" 2.100" 2.000" 2.100" 2.100" 2.100" 2.100" 2.100" 2.100" 2.100" 2.100" 2.100" 2.100" 2.100" 2.100" 2.100" 2.100" 2.100" 2.100" 2.100" 2.000" 2.000" 2.000" 2.200" 2.200" 2.200" 2.200" 2.200" 2.200" 2.200" 2.200" 2.200"
5.700" 5.700" 5.700" 5.700" 5.700" 5.700" 5.700" 5.700" 5.700" 5.700" 5.700" 5.700" 5.740" 5.565" 6.098" 6.098" 6.098" 5.700" 6.098" 6.098" 6.098" 6.098" 6.098" 6.067" 6.098" 6.098" 6.098" 6.098" 6.135" 6.000" 6.135" 6.135" 6.135" 6.135" 6.135" 6.135" 6.135" 6.135" 6.135" 6.535"
9.025" 9.025" 9.025" 9.025" 9.025" 9.025" 9.025" 9.025" 9.025" 9.025" 9.025" 9.025" 9.025" 9.025" 9.240" 9.240" 9.240" 9.240" 9.240" 9.240" 9.240" 9.240" 9.240" 9.240" 9.240" 9.240" 9.240" 9.240" 9.800" 9.800" 9.800" 9.800" 9.800" 9.800" 10.200" 9.800" 9.800" 10.200" 9.800" 9.800"
1.731" 1.800" 1.550" 1.540" 1.780" 1.825" 1.825" 1.560" 1.650" 1.675" 1.675" 1.560" 1.440" 1.560" 1.324" 1.325" 1.328" 1.325" 1.170" 1.325" 1.170" 1.170" 1.170" 1.170" 1.170" 1.170" 1.170" 1.170" 1.832" 2.050" 1.840" 1.760" 1.770" 1.760" 2.140" 1.645" 1.645" 2.140" 1.665" 1.108"
265 265 267 283
4.3 4.3 4.4 4.6 5.0 5.0 5.0 5.0 5.4 5.4 5.7 5.7 6.6 5.3 5.7 6.0 6.2 6.2 6.2 6.2 6.2 7.0 6.2 6.2 6.2 5.7 6.7 7.0 6.6 6.6 7.0 7.0 7.4 7.4 8.1 8.2 9.4
1955-57 3.750" 1994-96 3.750" 1979-82 3.500" 1957-67 3.875" 1968-69 4.000" 1976-98 3.736" 1968-73 3.875" 1962-67 4.000" 1967 4.000" 1968-69 4.000" 1967-98 4.000" 1989-95 3.900" 1970-80 4.125"
302 (Early) 302 (Late)
305 307
327 (Early) 327 (Late)
350
350 LT-5
400
LS Series V8 GEN III (1997-2007), GEN IV (2005-2014) Incl. Vortec Truck Engines 293 Vortec 4800 4.8 1999-14 3.780" 3.268" 2.299" 2.100"
325 Vortec 5300
1999-13 3.780" 1997-04 3.898" 1999-08 4.000"
346 LS1 364 LS2 376 L92 376 LS3 376 L99 376 LS9 376 LSA 427 LS7
2007-13
4.06"
2007-08 4.060"
2010-15 2009-13 2009-15
4.06" 4.06" 4.06"
2006-08 4.125"
LT Series V8 GEN V (2014-Present) 325.1 L83 5.3 2014-15
3.78" 4.06" 4.06" 4.06"
3.62" 3.62" 3.62" 3.62"
376 LT1 376 L86 376 LT4
2014-15 2014-15 2014-15
Big Block “W” Series 348
1958-61 4.125"
3.250"
409
1961-65 4.3125" 3.500" 1962-63 4.3125" 3.650"
427 Z11
Chevy Big Block 396
1965-69 4.094"
3.766" 3.766" 3.766" 3.766" 4.000" 4.000" 4.370" 4.000" 4.375"
402 427
1970-72
4.125"
1966-99 4.250" 1966-99 4.250" 1970-00 4.250" 1996-00 4.250" 2001-07 4.250"
427 Truck
454
454 Vortec 496 Vortec
502 572
Perf. Perf.
4.470" 4.560"
2021-22 ENGINE BUILDER CATALOG 644
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