Heads on a 300 hp 63
06-08-2009, 08:12 PM
#4
Race Director
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C2 of Year Finalist (track prepared) 2019
The only engine that didn't get the double hump head was the 327/250, which was saddled with the older, small valve PowerPak style of head.
Jim
Jim
06-08-2009, 09:54 PM
#5
Team Owner
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Location: Greenville, Indiana
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06-08-2009, 11:50 PM
#7
Pro
The double hump head #3782461, or fuelie head, came with 1.94/1.50 valves in the 300 hp, and 2.02/1.60 valves in the 365/375 hp. for 64-66 early. 62.072 cc chambers
The 3782461X double hump, was the early version and had 1.94/1.50 valves. it was used on fuelie 283 and 300 hp and up 327 through 63. 62.076 chambers
The 3890462 double hump was used on 275 and up 327, Z28 and 295 hp 350 from late 66 to early 67. It used 1.94/1.50 on all but Z28 and 350 hp 327, which had the 2.02/1.60 valves. 62.072 chambers in 66, 63.305 in 67.
The 3917291 (1) double hump was used on 275 and 300 hp 327, and 295 hp 350. It used 1.94/1.50 valves, and 63.305 chambers. Used from late 67 through 68.
The 3917291 (2) double hump was used on 325 and 350 hp 327, and Z28. It used 2.02/1.60 valves., and had 63.995 chambers. Used from late 67 through 68.
Both 291 heads had temp sending unit boss in head though early (1) castings were not drilled and tapped.
Power pack heads had 1.74/150 valves and 59.669 chambers.
The 3782461X double hump, was the early version and had 1.94/1.50 valves. it was used on fuelie 283 and 300 hp and up 327 through 63. 62.076 chambers
The 3890462 double hump was used on 275 and up 327, Z28 and 295 hp 350 from late 66 to early 67. It used 1.94/1.50 on all but Z28 and 350 hp 327, which had the 2.02/1.60 valves. 62.072 chambers in 66, 63.305 in 67.
The 3917291 (1) double hump was used on 275 and 300 hp 327, and 295 hp 350. It used 1.94/1.50 valves, and 63.305 chambers. Used from late 67 through 68.
The 3917291 (2) double hump was used on 325 and 350 hp 327, and Z28. It used 2.02/1.60 valves., and had 63.995 chambers. Used from late 67 through 68.
Both 291 heads had temp sending unit boss in head though early (1) castings were not drilled and tapped.
Power pack heads had 1.74/150 valves and 59.669 chambers.
Last edited by landshark 454; 06-08-2009 at 11:52 PM.
06-09-2009, 09:10 AM
#8
Drifting
hi perf
The 327/300 engine was considered, high performance' while the solid lifter versions were, 'special hi perf'. All the old parts manuals differentiated the engines as such.
06-09-2009, 10:20 PM
#10
Burning Brakes
[QUOTE=landshark 454;1570381739]The 3782461X double hump, was the early version and had 1.94/1.50 valves. it was used on fuelie 283 and 300 hp and up 327 through 63. 62.076 chambers
QUOTE]
Correct. I have the 3782461X heads on my 63' 360hp fuelie.
Cheers,
Bob
QUOTE]
Correct. I have the 3782461X heads on my 63' 360hp fuelie.
Cheers,
Bob