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|-+  Orphans - documentation or VIN-stamped drivetrains - in search of the original cars
| |-+  1968 - Orphans
| | |-+  MO302 partial vin of 18L335817
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Author Topic: MO302 partial vin of 18L335817  (Read 1462 times)
67rsCOS
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« Reply #15 on: March 18, 2014, 05:20:04 PM »

Out of curiosity, what would 1.94s have been used on?
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69Z28-RS
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« Reply #16 on: March 18, 2014, 09:59:37 PM »

Out of curiosity, what would 1.94s have been used on?

295/300 hp 350's for one....
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Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
ko-lek-tor
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« Reply #17 on: March 18, 2014, 10:25:11 PM »

Do those heads have a machined pocket on the intake side or I'll re-phrase, should they? Do 462 and 291 heads (2.02) have machined area around intake valve? My only experience with 2.02s are 186 and 492(over the counter) heads I have had and they are machined. Usually a good way to tell if that is the valve that came in head opposed to being modified.
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Putting you First...Keeps me First. Talent on loan from God. Helping the hobbyist and exposing the fraud
1969 SS/RS 396 coupe Hugger Orange X22 712 bought in 79
1969 SS 350 coupe LeMans Blue 713 bought in 79
1969 307 4spd. coupe Daytona Yellow 711 bought in 85
69Z28-RS
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« Reply #18 on: March 18, 2014, 11:29:45 PM »

No.  If you were to take, for example, 186 heads with 1.94" intakes, and have them machined for 2.02 intake valve size, then you would also want to ask them to machine to 'unshroud' the valve.  Hope that answers your question.. Smiley
Note:  I really like the 1.94" valve heads on the street better than 2.02, as you'd have to be running very high rpms to justify the larger valve size.  1.94" run better and are more efficient for 90% of street driving.
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Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
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