any Idea's on the 327 I jest bought - The 1947 - Present Chevrolet & GMC Truck Message Board Network

My Boy's Toy · 10-19-2002, 05:39 PM

Jest bought a 327 that sat in a hay mow for 20 years , was told it was out of a 66 Convertable , with air. has a 2 barrel carb , air cleaner , now the funny part , after I cleaned the grease off the valve covers It read 275 HP , I thought someone changed them over the years . checked the block & head #'s at MorTec came up with 65-67 , 327 Block & #3782461 Heads - Camel Hump With no Accesory Holes, Could it be a 275 Hp & how can I tell , Schoudn't it be a 4 Barrel?

imaindianoutlaw · 10-19-2002, 05:44 PM

I dont know right now, but give to me and I will find out what it is! Nice replacement for my 6!

My Boy's Toy · 10-19-2002, 05:48 PM

Nice try , I'll pull it apart tomarrow , & look inside , how can I tell if it is a 275 Hp?

bigjimzlll · 10-19-2002, 05:49 PM

yup probably the 275 HP one...that was 1966 HP though..the 461s probably have 1.94 valves..they are good heads..pull the valve covers and see if they have screwed in studs..if they do.. they are 2.02 heads

...the base 327 was 250HP I think.or 225..they had a 300HP one too

crazy longhorn · 10-19-2002, 05:53 PM

The 2 barrel is an odd ball in the mix, but could have been changed at some point......it sounds like a 275hp eng to me

My Boy's Toy · 10-19-2002, 06:29 PM

if The 202's have Screw in studes , do the threads show or are they screwed in allmost all the way?

crazy longhorn · 10-19-2002, 06:50 PM

If it has screw in studs, it should also have guide plates & a nut face will be on the stud above the guide plate....

My Boy's Toy · 10-19-2002, 07:20 PM

must be 1.94's then . what makes camel humps different? what would be different on the bottom end , cam , Pistions , on a 275 Hp 327

crazy longhorn · 10-19-2002, 07:30 PM

On the 250,275,& 300 hp engines nothing is different on the bottom(just heads & carb.....& single or dual exhaust). There was an L79 350 hp(hyd cam), a 365 hp (solid cam), & a 375 hp (solid cam & fuel injection)......these all had domed pistons & big valves. the first 3 mentioned all had flat top pistons & the same hyd cam........longhorn

My Boy's Toy · 10-19-2002, 07:39 PM

Thank you longhorn for all your help . I'd like to say thanks to all , that's what makes this board so Great. every one pooling there Knowledge & sherring it with all to use , MY Boys Toy 8-)

kaycee · 10-19-2002, 08:30 PM

What is the # behind the drvs. side head on the block?

I took 1 out of a Massy 510 combine last year it only has 1 set of valve relief on each piston .

My Boy's Toy · 10-19-2002, 09:04 PM

the block # is 3858174 , MorTec said it was a 65-67 Block , i'll take it apart tomorrow & see how good it is .

My Boy's Toy · 10-20-2002, 04:54 PM

talk about luck , sat for 20 years & the way it looks inside she would have run if i'd a put fuel in her. Got to get lucky sooner or later !

Capitol68 · 10-20-2002, 08:04 PM

nice find !

weasel29gm · 10-20-2002, 10:20 PM

New issue of Chevy Hi- Performance has a good buildup on a 327. Good info!!!!!

My Boy's Toy · 10-20-2002, 10:37 PM

thanks i'll try to find a copy , any idea what it could have been out of ? # stamped into the front of the block is F020IHCH

10-19-2002, 05:39 PM	#1
My Boy's Toy Registered User Join Date: Dec 2001 Location: West Unity, OH, USA Posts: 235	any Idea's on the 327 I jest bought Jest bought a 327 that sat in a hay mow for 20 years , was told it was out of a 66 Convertable , with air. has a 2 barrel carb , air cleaner , now the funny part , after I cleaned the grease off the valve covers It read 275 HP , I thought someone changed them over the years . checked the block & head #'s at MorTec came up with 65-67 , 327 Block & #3782461 Heads - Camel Hump With no Accesory Holes, Could it be a 275 Hp & how can I tell , Schoudn't it be a 4 Barrel?

10-19-2002, 05:44 PM	#2
imaindianoutlaw GMC SHORT FLEET F/S Join Date: Jun 2000 Location: SOUTH WILLIAMSPORT PENNSYLVANNIA Posts: 2,117	I dont know right now, but give to me and I will find out what it is! Nice replacement for my 6! __________________ CHARLES WADE HEIN HVACR FOREMAN. LEWISBURG U.S.P.

10-19-2002, 05:49 PM	#4
bigjimzlll Senior Member Join Date: Dec 2001 Location: Redding,CA...USA Posts: 4,736	yup probably the 275 HP one...that was 1966 HP though..the 461s probably have 1.94 valves..they are good heads..pull the valve covers and see if they have screwed in studs..if they do.. they are 2.02 heads ...the base 327 was 250HP I think.or 225..they had a 300HP one too __________________ It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA

10-19-2002, 08:30 PM	#11
kaycee Registered User Join Date: Jan 2000 Location: Wyoming USA Posts: 2,449	GOOD FIND What is the # behind the drvs. side head on the block? I took 1 out of a Massy 510 combine last year it only has 1 set of valve relief on each piston . __________________ 2001 Silverado K-1500 2005 FXDWG stage3 69 CHEVY Short/Step 327/4L60 373 posi 63 IMPALA 327

10-20-2002, 08:04 PM	#14
Capitol68 Registered User Join Date: Sep 2002 Location: Austin,Tx Posts: 327	nice find ! __________________ '68 Fleet LWB orig 307 .030 over GM Hei/w Accel Super coil orig. stock TH 400. _______________________ “What we do for ourselves dies with us. What we do for others and the world remains and is immortal.” Albert Pine English author d.1851

10-19-2002, 05:48 PM	#3
My Boy's Toy Registered User Join Date: Dec 2001 Location: West Unity, OH, USA Posts: 235	Nice try , I'll pull it apart tomarrow , & look inside , how can I tell if it is a 275 Hp?

10-19-2002, 05:53 PM	#5
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	The 2 barrel is an odd ball in the mix, but could have been changed at some point......it sounds like a 275hp eng to me

10-19-2002, 06:29 PM	#6
My Boy's Toy Registered User Join Date: Dec 2001 Location: West Unity, OH, USA Posts: 235	if The 202's have Screw in studes , do the threads show or are they screwed in allmost all the way?

10-19-2002, 06:50 PM	#7
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	If it has screw in studs, it should also have guide plates & a nut face will be on the stud above the guide plate....

10-19-2002, 07:20 PM	#8
My Boy's Toy Registered User Join Date: Dec 2001 Location: West Unity, OH, USA Posts: 235	must be 1.94's then . what makes camel humps different? what would be different on the bottom end , cam , Pistions , on a 275 Hp 327

10-19-2002, 07:30 PM	#9
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	On the 250,275,& 300 hp engines nothing is different on the bottom(just heads & carb.....& single or dual exhaust). There was an L79 350 hp(hyd cam), a 365 hp (solid cam), & a 375 hp (solid cam & fuel injection)......these all had domed pistons & big valves. the first 3 mentioned all had flat top pistons & the same hyd cam........longhorn

10-19-2002, 07:39 PM	#10
My Boy's Toy Registered User Join Date: Dec 2001 Location: West Unity, OH, USA Posts: 235	Thank you longhorn for all your help . I'd like to say thanks to all , that's what makes this board so Great. every one pooling there Knowledge & sherring it with all to use , MY Boys Toy 8-)

10-19-2002, 09:04 PM	#12
My Boy's Toy Registered User Join Date: Dec 2001 Location: West Unity, OH, USA Posts: 235	the block # is 3858174 , MorTec said it was a 65-67 Block , i'll take it apart tomorrow & see how good it is .

10-20-2002, 04:54 PM	#13
My Boy's Toy Registered User Join Date: Dec 2001 Location: West Unity, OH, USA Posts: 235	talk about luck , sat for 20 years & the way it looks inside she would have run if i'd a put fuel in her. Got to get lucky sooner or later !

10-20-2002, 10:20 PM	#15
weasel29gm SLOW BUT SURE,BUT CLOSER Join Date: Feb 2002 Location: eleanor wv usa Posts: 3,096	New issue of Chevy Hi- Performance has a good buildup on a 327. Good info!!!!! __________________ 69 C-10, OWNED 38YRS... 350 over 30, 350 Turbo, 3:73 Posi P/S, P/B Black with red and black int. ''LOVE THESE OLD ''TRUCKS.......



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10-20-2002, 10:37 PM	#16
My Boy's Toy Registered User Join Date: Dec 2001 Location: West Unity, OH, USA Posts: 235	thanks i'll try to find a copy , any idea what it could have been out of ? # stamped into the front of the block is F020IHCH

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