305tpi-350tpi
#1
Member
Thread Starter
Join Date: Apr 2005
Location: Owensboro KY
Posts: 169
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1998 zx9r
Engine: 899CC inline 4
Transmission: 6 speed manual
Axle/Gears: 15T front sprocket, 43T rear
305tpi-350tpi
My friend just got a 86 iroc with a 305 tpi but it smokes on start up and he has a 350 block laying around, can he take all the stuff off of the 305 and put on the 350 to put it in his car, there is no difference on the outside of the motor between the two, so i told him he could probably swap all the tpi stuff over to the 350 and drop it in.
#2
Supreme Member
iTrader: (2)
Join Date: Jan 2005
Location: Hurst, Texas
Posts: 10,046
Received 396 Likes
on
338 Posts
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: 305tpi-350tpi
Originally posted by Blkmaroman
My friend just got a 86 iroc with a 305 tpi but it smokes on start up
My friend just got a 86 iroc with a 305 tpi but it smokes on start up
#3
Member
Thread Starter
Join Date: Apr 2005
Location: Owensboro KY
Posts: 169
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1998 zx9r
Engine: 899CC inline 4
Transmission: 6 speed manual
Axle/Gears: 15T front sprocket, 43T rear
thats what i thought but i didnt know if he would need bigger injectors or if he could use the same 305 heads on his 350 because thats what he wants to do to get more compression.
#5
Member
Thread Starter
Join Date: Apr 2005
Location: Owensboro KY
Posts: 169
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1998 zx9r
Engine: 899CC inline 4
Transmission: 6 speed manual
Axle/Gears: 15T front sprocket, 43T rear
seems like it wont be too hard just unbolt and bolt back on with different injectors and chip, what about the cam.
#6
Supreme Member
iTrader: (4)
Join Date: Aug 2005
Location: louisville, ky
Posts: 1,366
Likes: 0
Received 0 Likes
on
0 Posts
Axle/Gears: '01 3.42 10 bolt
does your friend know the origins of the 350? the cam has to be matched to the lifters. hydraulic to hydraulic, solid to solid,flat tappet to flat tappet, roller to roller.
#7
Member
Thread Starter
Join Date: Apr 2005
Location: Owensboro KY
Posts: 169
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1998 zx9r
Engine: 899CC inline 4
Transmission: 6 speed manual
Axle/Gears: 15T front sprocket, 43T rear
its an old block like 70's, and he hasnt put it together yet so there arent any lifters or cam or anything in it yet, what would be the best cam for tpi 350
Trending Topics
#8
Supreme Member
iTrader: (4)
Join Date: Aug 2005
Location: louisville, ky
Posts: 1,366
Likes: 0
Received 0 Likes
on
0 Posts
Axle/Gears: '01 3.42 10 bolt
he will have to modify the intake slightly to get the intake to fit. the center 2 bolt holes are different i believe. a search should turn up some results on that.
as far as the cam, you will have to ask someone with more knowledge of cams than i have. i haven't done a lot of research on cams for non-roller type blocks.
as far as the cam, you will have to ask someone with more knowledge of cams than i have. i haven't done a lot of research on cams for non-roller type blocks.
#9
TGO Supporter
Join Date: Oct 2002
Location: Saskatoon, SK, Canada
Posts: 9,067
Likes: 0
Received 1 Like
on
1 Post
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Check out Comp Cams website.. they make cams specifically for EFI applications like yours.
As far as converting 305 -> 350, you'll need to change out the knock sensor as well. You can't use the one from the 305 because the bore size is different. Different bore = different calibration. Get one for a 350.
As far as converting 305 -> 350, you'll need to change out the knock sensor as well. You can't use the one from the 305 because the bore size is different. Different bore = different calibration. Get one for a 350.