Quote:
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Originally Posted by intimidator4x4
302's were not 327's with 283 cranks, 302 had their own crank
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the only difference is the modified journals, 302s had the mid size (what is standard to a 350) main journals. the first 302s were in fact built based on a SJ 327 block with a 283 crank, when everything went to the MJ in '68 the 302s followed suit. IIRC names like Smokey Yunick and the likes were running 302ci small blocks well before they came out in '67
cranks
Quote:
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Originally Posted by www.mortec.com
Gen.I, "Small Journal"
265...Mains-2.30"-Rods-2.00"
283...Mains-2.30"-Rods-2.00"
302...Mains-2.30"-Rods-2.00"
327...Mains-2.30"-Rods-2.00"
Gen.I, "Medium Journal", includes "Vortec" 305 and 350 thru '98
262...Mains-2.45"-Rods-2.10"
267...Mains-2.45"-Rods-2.10"
302...Mains-2.45"-Rods-2.10"
305...Mains-2.45"-Rods-2.10"
307...Mains-2.45"-Rods-2.10"
327...Mains-2.45"-Rods-2.10"
350...Mains-2.45"-Rods-2.10"
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Quote:
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3815822..265,283,302.forged..small journal....3.00" stroke
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same crank used from the original 265ci small block dating back to the tri-five era.
blocks
Quote:
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Originally Posted by www.mortec.com
389257.....302.....67....2 bolt main
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which would be the SJ 302
Quote:
3914678....302.....68....2...Z-28 Camaro
3914678....327.....68....2
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matching blocks for 68
Quote:
3956618....302.....69....4...Z-28 Camaro
3956618....327...68-69...2
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matching casting numbers for 69.
Quote:
3970010....302.....69....4...Z-28 Camaro
3970010....327.....69....2...Trucks and industrial
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which would be the MJ 302 and MJ 327 for 69.
which confirms that they were in fact, 327 blocks, with 283 cranks.