Build advice
Thread Starter
Teching In
Joined: Aug 2014
Posts: 48
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Build advice you guys with stock cubic inch fbody cars cars running decent 1/8 mile times got any advice for me. I’m going from a fairly mild cam 227/231 114lsa with ported 241 heads un-ported fast stalled car that cut 7.40’s at 93mph full weight, to a custom cam aftermarket head car with a ported fast. I keep reading about these 346 fbody cars running in the mid-high 6’s 98-100+ mph N/A full weight but I sit & think about what I’m physically seeing out here it’s hard to believe lol. My current converter is a yank pt4000. Before I get my cam specd I’m trying to decide on what heads to purchase. My fast 92 has been fully ported. Also My ls1 took a crap so I got ahold of a 5.3 iron block for cheap so I’m dealing with a tad bit extra weight. I removed my AC & plan to have the 5.3 opened up to a 346-7. I go to people & they all have a dyno number in mind more than an ET or mph & hopefully this is posted in the right section. I don’t want a 500rwhp car that’s not going to go down the track like the numbers says it should. I have read in the drag times but those guys aren’t really saying much about their builds. They run these times & brag but they won’t drop a dime of what they’ve done to achieve it. Majority of them are M6 also. Thanks
Last edited by thesoldier; May 9, 2020 at 11:47 AM. Reason: Missed something
Thread Starter
Teching In
Joined: Aug 2014
Posts: 48
Likes: 0
Well you can get good power out of a NA 5.3 but it will always be lacking behind a ls1 in the power department plus the extra 100ish pounds like you said. So mod for mod it will always be slower than a ls1 car. If you just wanna get into the 7s then you shouldn’t have a problem, you could always throw some nitrous on there for the track
Thread Starter
Teching In
Joined: Aug 2014
Posts: 48
Likes: 0
Well you can get good power out of a NA 5.3 but it will always be lacking behind a ls1 in the power department plus the extra 100ish pounds like you said. So mod for mod it will always be slower than a ls1 car. If you just wanna get into the 7s then you shouldn’t have a problem, you could always throw some nitrous on there for the track
Thread Starter
Teching In
Joined: Aug 2014
Posts: 48
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i planned on having it bored for 5.7. I contemplated going with a 4 or a 4.125 crank with 6.125 rods but I haven’t heard about them running too much better than an ls1 with a great set of heads, cam & intake.
