CHEV Heads ?? Options

Previous Topic Next Topic

tanart		#1 Posted : Thursday, 14 December 2006 9:19:49 PM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 9/11/2005(UTC) Posts: 268		i have a set of chev heads and need to know what they're off. The part number on them is 3917291. They have the double humps on the front of the head. Thanks
User Profile View All Posts by User View Thanks

Sandman		#2 Posted : Thursday, 14 December 2006 11:15:46 PM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 5/07/2005(UTC) Posts: 349		Whats the casting number under the intake runner? Should be 3 numbers. Sound like old double hump Fuellies. Usually 1.94 & 1.5"valves, 64cc chamber, pressed in rocker studs. No accessory holes tapped in the front of the heads? Edited by user Thursday, 14 December 2006 11:19:09 PM(UTC)  | Reason: Not specified
User Profile View All Posts by User View Thanks

HK1837		#3 Posted : Friday, 15 December 2006 9:09:18 AM(UTC)
Rank: Veteran Reputation: Groups: Moderator, Registered, Veteran Joined: 1/03/2005(UTC) Posts: 14,898 Thanks: 1 times Was thanked: 556 time(s) in 531 post(s)		64cc chambers, off: '67-'69 302ci, 290hp, 2.02/1.6 valves. '67-'69 327ci, 250hp, 275hp, 300hp, 1.94/1.5. '67-'69 350ci, 325hp, 350hp, 2.02/1.6. '67-'70 350ci, 295hp, 1.94/1.5. _______________________________________________________ If we a
		_______________________________________________________ If we all had the same (good) taste, who would buy all the Fords?
User Profile View All Posts by User View Thanks

tanart		#4 Posted : Friday, 15 December 2006 10:03:20 PM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 9/11/2005(UTC) Posts: 268		were these ever used on the HK327?
User Profile View All Posts by User View Thanks

HK1837		#5 Posted : Sunday, 17 December 2006 7:04:09 AM(UTC)
Rank: Veteran Reputation: Groups: Moderator, Registered, Veteran Joined: 1/03/2005(UTC) Posts: 14,898 Thanks: 1 times Was thanked: 556 time(s) in 531 post(s)		No. But there is some confusion around HK type 2 heads. The blue parts manual lists part number 3958602 for the type 2 327. It is a 64cc, 1.94/1.5" valve fuel injection head for 1961-70 as fitted to higher performance engines. I think this was also the HT
		_______________________________________________________ If we all had the same (good) taste, who would buy all the Fords?
User Profile View All Posts by User View Thanks

ozchevy		#6 Posted : Sunday, 17 December 2006 9:26:55 AM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 12/10/2005(UTC) Posts: 495		Byron, I don't have any info on these 3958602 heads, and they are not listed in Sallee Chevrolet head lists either. 1968-69 (3917291) 350cu" 1.94 inlet 1.5 exhaust 1968-69 (3917290) 307,327cu" 1.72 inlet 1.5 exhaust 1969 (3927188) 307cu"
User Profile View All Posts by User View Thanks

HK1837		#7 Posted : Monday, 18 December 2006 9:43:25 AM(UTC)
Rank: Veteran Reputation: Groups: Moderator, Registered, Veteran Joined: 1/03/2005(UTC) Posts: 14,898 Thanks: 1 times Was thanked: 556 time(s) in 531 post(s)		I made a mistake above. Part number 3958603 is the 64cc HT head, not 3958602. 3958602 is the GM part number, not casting number. GMH also listed part number 3958603 for the type 1 HK 327 in the revised HK parts manual. Part number 3958602 is simply a sma
		_______________________________________________________ If we all had the same (good) taste, who would buy all the Fords?
User Profile View All Posts by User View Thanks

tanart		#8 Posted : Monday, 18 December 2006 11:39:05 PM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 9/11/2005(UTC) Posts: 268		The chev heads cast number 3917291 have double humps.
User Profile View All Posts by User View Thanks

HK1837		#9 Posted : Tuesday, 19 December 2006 3:30:38 AM(UTC)
Rank: Veteran Reputation: Groups: Moderator, Registered, Veteran Joined: 1/03/2005(UTC) Posts: 14,898 Thanks: 1 times Was thanked: 556 time(s) in 531 post(s)		Do they have accessory holes in the ends? _______________________________________________________ If we all had the same (good) taste, who would buy all the Fords?
		_______________________________________________________ If we all had the same (good) taste, who would buy all the Fords?
User Profile View All Posts by User View Thanks

ozchevy		#10 Posted : Tuesday, 19 December 2006 6:47:18 AM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 12/10/2005(UTC) Posts: 495		3917291 are Double Hump heads, and no accessory holes are drilled as standard heads. 3927186 is as Byron say's also a Double Hump head, but these were called a Bowtie Head in the U.S
User Profile View All Posts by User View Thanks

tanart		#11 Posted : Tuesday, 19 December 2006 7:10:17 AM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 9/11/2005(UTC) Posts: 268		No accessory holes as ozchevy mentioned.
User Profile View All Posts by User View Thanks

HK1837		#12 Posted : Tuesday, 19 December 2006 7:29:06 PM(UTC)
Rank: Veteran Reputation: Groups: Moderator, Registered, Veteran Joined: 1/03/2005(UTC) Posts: 14,898 Thanks: 1 times Was thanked: 556 time(s) in 531 post(s)		I think that the 3917291 heads may have been the ones Des West got caught with. I remember hearing or reading somewhere that it was the casting marks and not the accessory holes that scutineers spotted. May be wrong though. ____________________________
		_______________________________________________________ If we all had the same (good) taste, who would buy all the Fords?
User Profile View All Posts by User View Thanks

Users browsing this topic

Guest (2)