SBC bottom end questions
#1
Staging Lane
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SBC bottom end questions
Hey guys i am building a street/strip car. 1976 chevy nova. I was wanting some input on bottom end options from your guys experiences. My local machine shop has either a 400 or 350 block available to choose from. This is going to be somewhat a budget build and the machine shop also has a steel crank for a 350ci for $200. Stroker? 6 in. rod? Does the 400ci. over heat? They want a difference of $200 dollors on the blocks.
Parts gathered up so far:
elderbrock aluminum heads (202/160 70cc) straight plugs
victor junior intake
b&m zgate
350 turbo (redline internals kevlar clutches)
12 bolt (456 posi)
Any info/suggestions is appreciated and considered. What brands on bottom ends are better then others? Since hyper pistons are cheap, can they hold nitrous cause we are going to be using about a 150 shot. What other parts do you all recomend considering what i am wanting and what i have already?
Thanks, mark
Parts gathered up so far:
elderbrock aluminum heads (202/160 70cc) straight plugs
victor junior intake
b&m zgate
350 turbo (redline internals kevlar clutches)
12 bolt (456 posi)
Any info/suggestions is appreciated and considered. What brands on bottom ends are better then others? Since hyper pistons are cheap, can they hold nitrous cause we are going to be using about a 150 shot. What other parts do you all recomend considering what i am wanting and what i have already?
Thanks, mark
#3
Staging Lane
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what is your input on 6in. rods? what kind of machine work is needed if any? what kind of machine work is needed with a stroker? can it be done with normal tools? or should i have it done perfessionally so its balanced right? What kit do you recomend?
sorry about all the questions
Thanks, mark
sorry about all the questions
Thanks, mark
#4
In-Zane Moderator
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Its OK, i have built 3 or 4 stroker motors, 383s. You have to clearance the block to allow the rods not to hit the bottom of the cylinder, the 6 inch rod is better for high RPM. The 5.7 is better for a mild street motor. I have the 6 inch. The Scat rods made for 650 HP that are the I beam design are EXCELENT for having extra room to clear the cam lobes so a small base circle cam is not necessary. Thats the ones i used. You will have to use a grinder, like a dye grinder with a deburring bit, the bit i use is for porting heads. If you do not have the time and do not want to worry about making a mistake then let a experienced friend or shop do the work so you can sleep better knowing there is no issues. You will have to have the assy ballanced to make it work in harmony.
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#10
Staging Lane
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What do you think about the hypereutectic pistons? can they handle around 500hp or nitrous? i am on my way to advance right now to see what my buddy can get me with his discount. So ill post what i came up with tonight.
Thanks for the info guys, mark
Thanks for the info guys, mark
#11
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A 400 apples to apples will outpower a 383 due to the larger bore which unshrouds the valves and makes more power. They are less reliable I belive unless you go with an aftermarket block. Good condition 400 blocks with no core shift are getting $$ and hard to find.
For the small price difference between hypercrap and forged, it's forged all the way.
#13
Staging Lane
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i think i have decided more on the 350ci. But for everyone else how much are you asking and what all is in the complete? stock? freshly done? forged? you know.....
Thanks, mark and sam
Thanks, mark and sam
#18
look guys heres the combo!
DART BLOCK(RACE SERIES)
AFR FULL RACE HEADS
ULTRA LITE SCAT,CROWER,LUNATI. W/A FULL DETAIL & RACEPREP (3.875STROKE)
H-BEAM RODS(SCAT)6.00"
FORGED JE OR ROSS OR CP "NITROUS" PISTONS 11.5:1(4.185 BORE)
MANTON RODS
CROWER SHAFT ROCKERS
MANLY NEXTEC TRIPLE ROLLER SPRINGS
CROWER SOLID ROLLER LIFTERS
CUSTOM BILLIT 8620 ROLLERCAM
TOTALSEAL 2nd GAPLESS RINGS
DART,BRODIX,WORLD (PORTED & POLISHED) INTAKE
INTERNALLY BALANCE THE THING AND MATCH THE CARB TO THE COMBO
DART BLOCK(RACE SERIES)
AFR FULL RACE HEADS
ULTRA LITE SCAT,CROWER,LUNATI. W/A FULL DETAIL & RACEPREP (3.875STROKE)
H-BEAM RODS(SCAT)6.00"
FORGED JE OR ROSS OR CP "NITROUS" PISTONS 11.5:1(4.185 BORE)
MANTON RODS
CROWER SHAFT ROCKERS
MANLY NEXTEC TRIPLE ROLLER SPRINGS
CROWER SOLID ROLLER LIFTERS
CUSTOM BILLIT 8620 ROLLERCAM
TOTALSEAL 2nd GAPLESS RINGS
DART,BRODIX,WORLD (PORTED & POLISHED) INTAKE
INTERNALLY BALANCE THE THING AND MATCH THE CARB TO THE COMBO
#19
look guys heres the combo!
DART BLOCK(RACE SERIES)
AFR FULL RACE HEADS
ULTRA LITE SCAT,CROWER,LUNATI. W/A FULL DETAIL & RACEPREP (3.875STROKE)
H-BEAM RODS(SCAT)6.00"
FORGED JE OR ROSS OR CP "NITROUS" PISTONS 11.5:1(4.185 BORE)
MANTON RODS
CROWER SHAFT ROCKERS
MANLY NEXTEC TRIPLE ROLLER SPRINGS
CROWER SOLID ROLLER LIFTERS
CUSTOM BILLIT 8620 ROLLERCAM
TOTALSEAL 2nd GAPLESS RINGS
DART,BRODIX,WORLD (PORTED & POLISHED) INTAKE
INTERNALLY BALANCE THE THING AND MATCH THE CARB TO THE COMBO
DART BLOCK(RACE SERIES)
AFR FULL RACE HEADS
ULTRA LITE SCAT,CROWER,LUNATI. W/A FULL DETAIL & RACEPREP (3.875STROKE)
H-BEAM RODS(SCAT)6.00"
FORGED JE OR ROSS OR CP "NITROUS" PISTONS 11.5:1(4.185 BORE)
MANTON RODS
CROWER SHAFT ROCKERS
MANLY NEXTEC TRIPLE ROLLER SPRINGS
CROWER SOLID ROLLER LIFTERS
CUSTOM BILLIT 8620 ROLLERCAM
TOTALSEAL 2nd GAPLESS RINGS
DART,BRODIX,WORLD (PORTED & POLISHED) INTAKE
INTERNALLY BALANCE THE THING AND MATCH THE CARB TO THE COMBO