is what I read correct??
Thread Starter
Senior Member
Joined: Jun 2000
Posts: 712
Likes: 0
From: Los Angeles, Ca, USA
Car: 90 Camaro RS
Engine: 305 TBI
Transmission: T56
is what I read correct??
is it true the 305 and 350 have the exact same bore just a different stroke length??? so technically you can take a 305 and lengthen the stroke to make it a 350?? and you can convert a tbi to a tpi so is it possible to make my peice o' crap 305 TBI and turn it into a torque monster of a 350TPI????? if so is it worth it or should i just get a crate engine(350) and build it up.
thanks
rick
thanks
rick
Moderator
Joined: Jul 1999
Posts: 17,262
Likes: 168
From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
The 305 has a smaller bore. That's why the chev 305 isn't competative against the ford 302.
Stroking a 305 gets a 334
------------------
Stephen's racing page
87 IROC-Z Pro ET Bracket Race Car and knocking on the SuperPro ET class
383 stroker (carbed) with double hump cast iron heads and pump gas
LS6 Big Block buildup now in progress
Best results before the engine blew up
Best ET on a time slip: 11.857
Best corrected ET: 11.163
Best MPH on a time slip: 117.87
Best corrected MPH: 126.10
Best 60 foot: 1.662
Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association
[This message has been edited by Stephen 87 IROC (edited September 27, 2000).]
Stroking a 305 gets a 334
------------------
Stephen's racing page
87 IROC-Z Pro ET Bracket Race Car and knocking on the SuperPro ET class
383 stroker (carbed) with double hump cast iron heads and pump gas
LS6 Big Block buildup now in progress
Best results before the engine blew up
Best ET on a time slip: 11.857
Best corrected ET: 11.163
Best MPH on a time slip: 117.87
Best corrected MPH: 126.10
Best 60 foot: 1.662
Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association
[This message has been edited by Stephen 87 IROC (edited September 27, 2000).]
Supreme Member
Joined: Jul 1999
Posts: 1,294
Likes: 1
From: was: Palmdale, Ca
Car: was: 1984 Camaro Z28
Engine: was: L69
Transmission: was: 700-R4
305 = 3.736" bore x 3.48" stroke
350 = 4.001" bore x 3.48" stroke
------------------
George P. Lara
1994 Z28 LT1 T56
1984 Z28 High Output
Member: SCCA, SCFB, SC3GFB
350 = 4.001" bore x 3.48" stroke
------------------
George P. Lara
1994 Z28 LT1 T56
1984 Z28 High Output
Member: SCCA, SCFB, SC3GFB
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Its the other way around. Different bore, same stroke.
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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
------------------
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
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