is with this truck! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Mattsch18 · 05-13-2010, 06:31 PM

ok so iv tried almost ever vin decoder there is and none match up with my vin. and not to mention i pulled the valve cover off the drivers side to look at the head numbers and turns out i have a 305 head? but my SPI says a have a LF5 motor hich says its a 350 but no other vindecoders have that as a option? do i have some sorta monster/frankienstin 350/305? what was eunique or something? and i cant find my block casting numbers with the moter in the truck.... dose it have to be pulled and diaasmbeled?
heres the vin if anyone can help.
ccv146s173951
and head casting numbers are
367450
thanks for the help guys.

1LoC10 · 05-13-2010, 06:38 PM

you sure the first letter isnt a G?

Mattsch18 · 05-13-2010, 06:40 PM

nope the SPI and the vin and the title all say C im more worried about what the motor is alla bout, im pretty damn sure i have 305 heads on my block but i dont know what motor it is. and why the hell would anyone put 305's on a 350?

1LoC10 · 05-13-2010, 06:40 PM

3rd digit would be a L if it was a 350

1LoC10 · 05-13-2010, 06:46 PM

what year is the truck 75-76?

1LoC10 · 05-13-2010, 06:49 PM

I think you "v" should be a "u" that will be a 305

Mattsch18 · 05-13-2010, 06:55 PM

mine is a 76 so it says and from what i was told. im gunna take a pic o f the spi and post it here for you guys. can you tell the difference between a 305 and a 350 by just looking at it?

81ratrodc10 · 05-13-2010, 10:11 PM

there a thread about 305 heads on 350 more common than u think http://67-72chevytrucks.com/vboard/s...d.php?t=402163

Mattsch18 · 05-13-2010, 10:34 PM

yeah but is there any really reason, or is just some backyard mechanic trying to soup up his pos?

texasfunk · 05-13-2010, 11:53 PM

i know alot of guys use 305 heads on 350's, gives a higher compression ratio, only thing is, they flow worse so its a win-lose situation

Mattsch18 · 05-13-2010, 11:55 PM

well ill be rebuilding the 350 soonish, and im hoping to make a torgue monster not a horpower pant so any ideas on what i should do?

DubDubU · 05-14-2010, 12:26 AM

See what you think of this.
http://www.ramblerman.com/blazer/vin.htm

Mattsch18 · 05-14-2010, 02:02 AM

Quote:

Originally Posted by DubDubU

See what you think of this.
http://www.ramblerman.com/blazer/vin.htm

good info iv been looking for that info all day but found bits and piecces everywhere else good looking out!

05-13-2010, 06:31 PM	#1
Mattsch18 Registered User Join Date: May 2010 Location: Salem, Or Posts: 23	is with this truck! ok so iv tried almost ever vin decoder there is and none match up with my vin. and not to mention i pulled the valve cover off the drivers side to look at the head numbers and turns out i have a 305 head? but my SPI says a have a LF5 motor hich says its a 350 but no other vindecoders have that as a option? do i have some sorta monster/frankienstin 350/305? what was eunique or something? and i cant find my block casting numbers with the moter in the truck.... dose it have to be pulled and diaasmbeled? heres the vin if anyone can help. ccv146s173951 and head casting numbers are 367450 thanks for the help guys.

05-13-2010, 06:38 PM	#2
1LoC10 Insert Title Here Join Date: Feb 2006 Location: Dyer, Indiana Posts: 5,679	Re: wtf is with this truck! you sure the first letter isnt a G? __________________ BOBBY _69 SWB_ 1000 pics of 67-72's>> http://s193.photobucket.com/albums/z...-72/?start=all <<

05-13-2010, 06:40 PM	#3
Mattsch18 Registered User Join Date: May 2010 Location: Salem, Or Posts: 23	Re: wtf is with this truck! nope the SPI and the vin and the title all say C im more worried about what the motor is alla bout, im pretty damn sure i have 305 heads on my block but i dont know what motor it is. and why the hell would anyone put 305's on a 350?

05-13-2010, 06:40 PM	#4
1LoC10 Insert Title Here Join Date: Feb 2006 Location: Dyer, Indiana Posts: 5,679	Re: wtf is with this truck! 3rd digit would be a L if it was a 350 __________________ BOBBY _69 SWB_ 1000 pics of 67-72's>> http://s193.photobucket.com/albums/z...-72/?start=all << Last edited by 1LoC10; 05-13-2010 at 06:41 PM.

05-13-2010, 06:46 PM	#5
1LoC10 Insert Title Here Join Date: Feb 2006 Location: Dyer, Indiana Posts: 5,679	Re: wtf is with this truck! what year is the truck 75-76? __________________ BOBBY _69 SWB_ 1000 pics of 67-72's>> http://s193.photobucket.com/albums/z...-72/?start=all <<

05-13-2010, 06:49 PM	#6
1LoC10 Insert Title Here Join Date: Feb 2006 Location: Dyer, Indiana Posts: 5,679	Re: wtf is with this truck! I think you "v" should be a "u" that will be a 305 __________________ BOBBY _69 SWB_ 1000 pics of 67-72's>> http://s193.photobucket.com/albums/z...-72/?start=all <<

05-13-2010, 06:55 PM	#7
Mattsch18 Registered User Join Date: May 2010 Location: Salem, Or Posts: 23	Re: is with this truck! mine is a 76 so it says and from what i was told. im gunna take a pic o f the spi and post it here for you guys. can you tell the difference between a 305 and a 350 by just looking at it? Last edited by Mattsch18; 05-13-2010 at 07:36 PM.

05-13-2010, 10:11 PM	#8
81ratrodc10 house of chevy's Join Date: May 2010 Location: New milford, CT Posts: 583	Re: is with this truck! there a thread about 305 heads on 350 more common than u think http://67-72chevytrucks.com/vboard/s...d.php?t=402163 Last edited by 81ratrodc10; 05-13-2010 at 10:12 PM.

05-13-2010, 10:34 PM	#9
Mattsch18 Registered User Join Date: May 2010 Location: Salem, Or Posts: 23	Re: is with this truck! yeah but is there any really reason, or is just some backyard mechanic trying to soup up his pos?

05-13-2010, 11:53 PM	#10
texasfunk Registered User Join Date: Jun 2009 Location: Lubbock, TX Posts: 1,671	Re: is with this truck! i know alot of guys use 305 heads on 350's, gives a higher compression ratio, only thing is, they flow worse so its a win-lose situation __________________ 2006 GMC Sierra CCSB, 6.0 swap 2000 Chevy C3500 Crew Cab shortbed dually 1999 Chevy c2500 Crew Cab shortbed 1982 El Camino 350/350 1979 K5 2wd blazer bagged/bodied 1986 Monte Carlo SS 1991 Chevy CK SWB-67 clip and tailgate, bagged 350/700r4 1955 Chevy Bel Air 2014 Chevy Silverado ccsb

05-13-2010, 11:55 PM	#11
Mattsch18 Registered User Join Date: May 2010 Location: Salem, Or Posts: 23	Re: is with this truck! well ill be rebuilding the 350 soonish, and im hoping to make a torgue monster not a horpower pant so any ideas on what i should do?

05-14-2010, 12:26 AM	#12
DubDubU Registered User Join Date: Mar 2007 Location: st louis,mo Posts: 313	Re: is with this truck! See what you think of this. http://www.ramblerman.com/blazer/vin.htm __________________ '79' shortbed



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