LS2 accessory bolt size
Thread Starter
Teching In
Joined: Apr 2012
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LS2 accessory bolt size Hey all,
Yes I have searched and found the entire bolt kit for a LS but I am specifically looking for the bolt size and pitch for the accessories to the heads. I have Mammo 235 heads and Tony thinks they are a 10mm x 1.50 and I called AFR and they guy I spoke to was a complete tool and said they use stock casting which helps me 0 Anyone else have issues with the OE bolts not fitting?
Yes I have searched and found the entire bolt kit for a LS but I am specifically looking for the bolt size and pitch for the accessories to the heads. I have Mammo 235 heads and Tony thinks they are a 10mm x 1.50 and I called AFR and they guy I spoke to was a complete tool and said they use stock casting which helps me 0 Anyone else have issues with the OE bolts not fitting?
On The Tree
Joined: Jan 2012
Posts: 101
Likes: 9
Hey all,
Yes I have searched and found the entire bolt kit for a LS but I am specifically looking for the bolt size and pitch for the accessories to the heads. I have Mammo 235 heads and Tony thinks they are a 10mm x 1.50 and I called AFR and they guy I spoke to was a complete tool and said they use stock casting which helps me 0 Anyone else have issues with the OE bolts not fitting?
Yes I have searched and found the entire bolt kit for a LS but I am specifically looking for the bolt size and pitch for the accessories to the heads. I have Mammo 235 heads and Tony thinks they are a 10mm x 1.50 and I called AFR and they guy I spoke to was a complete tool and said they use stock casting which helps me 0 Anyone else have issues with the OE bolts not fitting?
Thread Starter
Teching In
Joined: Apr 2012
Posts: 16
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So I have a GTO is there any chance the LS2 in these cars have different accessory bolt sizes(Im aware this is unlikely but wanted to throw it out there)? My bolts are either to small; to the point they dont grab or they are too big. I will go to the hardware store tomorrow and get a 10mm x 1.5 and see what happens. I appreciate the input though
On The Tree
Joined: Jan 2012
Posts: 101
Likes: 9
So I have a GTO is there any chance the LS2 in these cars have different accessory bolt sizes(Im aware this is unlikely but wanted to throw it out there)? My bolts are either to small; to the point they dont grab or they are too big. I will go to the hardware store tomorrow and get a 10mm x 1.5 and see what happens. I appreciate the input though
No difference. The CTSV came with both the LS6 and LS2, both having 243 heads. Likewise, your GTO will have both the same heads and front accessories.
These are the GM bolts for the GTO/CTSV accessories sans AC.
- (2) Bolt, Transaxle Br p/n 809-11515768
- (3) Bolt - Hvy HX Acorn Flg Hd p/n 809-11518637
- (2) Bolt - Hvy HX Acorn Flg Hd p/n 809-11518630
- (3) Bolt - Hex Flg HD p/n 809-11518075
- (3) Bolt, Gen p/n 809-11518633
- (2) Bolt Hvy Hex Flg p/n 809-11515760
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