Stock LT1 bottom end?

tomcowle · 08-05-2008, 02:38 PM

A friend of mine who wants to get into Stocker style LT1 engine, however he does not have the money to have a shortblock built, however he has scored a Kenny Fulk prepared set of heads and Kenny spec'd Bullet cam and FAST dfi from a lt1 stocker. His car is nearly complete and he wants to try it out

What are the rpm limits of a factory LT1 shortblock? I think he would be on borrowed time with this shortblock if he shifted in the camshafts intended rpm range am I wrong?

Thanks

Chuck Norton · 08-05-2008, 04:49 PM

Tom,

It's not nearly as fragile as you might think. He should replace the rod bolts with quality pieces such as ARP.

c

08-05-2008, 05:11 PM

And I still have a very nice block and crank Tom that would work well for him for cheap! Throw in a set of rods and pistons and he'd be set. Scott

GUMP · 08-05-2008, 05:28 PM

I take it that he is at least going to refresh the short block? As Chuck said, the rod bolts should be replaced. When I first started racing stock, I used all of the factory parts except for the cam and valve springs. I never had any failures.

Good Luck,

Daren

tomcowle · 08-05-2008, 05:54 PM

Chuck, I should have picked up the phone to ask you. My friend is really bucking to run this set-up with the factory built bottom end including the rod bolts. He has found a few examples that have been ran but I feel that they are more exceptions than the rule.

Bub Whitaker · 08-05-2008, 05:58 PM

do not use it if it has powder metal rods... they will FAIL even with good bolts...

Alan Roehrich · 08-05-2008, 06:52 PM

I wouldn't run it with powdered metal rods either, regardless of what bolt you use. There are WAY too many aftermarket rods you can get plenty cheap to run that risk.

Woodro Josey · 08-05-2008, 07:35 PM

10-4 on the powdered metal rods guys!

Rusty Davenport · 08-08-2008, 11:37 AM

May I impose here with a question------for super stock LT1------can a bowtie block or should I say will a bowtie block work with the LT1 spec motor ???? In other words, is the stock block necessary whether it is stock or superstock application because of head design or for any other reason ????

Ed Wright · 08-08-2008, 01:01 PM

I don't know if they are legal in Stock. I have one in my LT1 Super Stocker, Dave Layer changed the heads for conventional cooling to work with the Bowtie block when he ported them for me.

08-05-2008, 02:38 PM	#1
tomcowle Junior Member Join Date: Mar 2008 Location: Geneva, Ohio Posts: 34 Likes: 0 Liked 0 Times in 0 Posts	Stock LT1 bottom end? A friend of mine who wants to get into Stocker style LT1 engine, however he does not have the money to have a shortblock built, however he has scored a Kenny Fulk prepared set of heads and Kenny spec'd Bullet cam and FAST dfi from a lt1 stocker. His car is nearly complete and he wants to try it out What are the rpm limits of a factory LT1 shortblock? I think he would be on borrowed time with this shortblock if he shifted in the camshafts intended rpm range am I wrong? Thanks

08-05-2008, 04:49 PM	#2
Chuck Norton Member Join Date: Dec 2001 Location: Covina, CA Posts: 472 Likes: 99 Liked 76 Times in 17 Posts	Re: Stock LT1 bottom end? Tom, It's not nearly as fragile as you might think. He should replace the rod bolts with quality pieces such as ARP. c

08-05-2008, 05:11 PM	#3
Gear Jammer '94 Guest Posts: n/a	Re: Stock LT1 bottom end? And I still have a very nice block and crank Tom that would work well for him for cheap! Throw in a set of rods and pistons and he'd be set. Scott

08-05-2008, 05:28 PM	#4
GUMP VIP Member Join Date: May 2002 Location: Shelby, NC Posts: 1,817 Likes: 2,146 Liked 2,326 Times in 546 Posts	Re: Stock LT1 bottom end? I take it that he is at least going to refresh the short block? As Chuck said, the rod bolts should be replaced. When I first started racing stock, I used all of the factory parts except for the cam and valve springs. I never had any failures. Good Luck, Daren

08-05-2008, 05:54 PM	#5
tomcowle Junior Member Join Date: Mar 2008 Location: Geneva, Ohio Posts: 34 Likes: 0 Liked 0 Times in 0 Posts	Re: Stock LT1 bottom end? Chuck, I should have picked up the phone to ask you. My friend is really bucking to run this set-up with the factory built bottom end including the rod bolts. He has found a few examples that have been ran but I feel that they are more exceptions than the rule.

08-05-2008, 05:58 PM	#6
Bub Whitaker Member Join Date: Feb 2005 Location: Dayton, MD Posts: 222 Likes: 0 Liked 1 Time in 1 Post	Re: Stock LT1 bottom end? do not use it if it has powder metal rods... they will FAIL even with good bolts...

08-05-2008, 06:52 PM	#7
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,098 Likes: 1,550 Liked 1,778 Times in 404 Posts	Re: Stock LT1 bottom end? I wouldn't run it with powdered metal rods either, regardless of what bolt you use. There are WAY too many aftermarket rods you can get plenty cheap to run that risk. __________________ Alan Roehrich 212A G/S

08-05-2008, 07:35 PM	#8
Woodro Josey Senior Member Join Date: Jul 2007 Posts: 805 Likes: 0 Liked 3 Times in 1 Post	Re: Stock LT1 bottom end? 10-4 on the powdered metal rods guys! __________________ Woodro Josey 2002 STK

08-08-2008, 11:37 AM	#9
Rusty Davenport Senior Member Join Date: Jun 2005 Location: Nashville N.C. Posts: 506 Likes: 4 Liked 101 Times in 27 Posts	Re: Stock LT1 bottom end? May I impose here with a question------for super stock LT1------can a bowtie block or should I say will a bowtie block work with the LT1 spec motor ???? In other words, is the stock block necessary whether it is stock or superstock application because of head design or for any other reason ????

08-08-2008, 01:01 PM	#10
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Stock LT1 bottom end? I don't know if they are legal in Stock. I have one in my LT1 Super Stocker, Dave Layer changed the heads for conventional cooling to work with the Bowtie block when he ported them for me. __________________ Ed Wright 4156 SS/JA