2020年11月1日 · Above the water pump, it's stamped T0428TSD. I couldn't get to the casting date so it's either a 75 or 77 truck 454 from a C20 or C30. The block appears to have been originally orange and then painted blue at some point. With it being a Mark IV block and the size of the holes, is it LIKELY that it is a 4 bolt block? How good is the 361959 casting?

2008年1月28日 · My big block is a #140154445, a truck block from 78-90(?) On the back of the casting I looked for a date, and found "0 2 blob 3". The blob is garbled metal not a paint run, like there was nothing in that space. Another place on that rear ledge I see "GM16" (maybe GMI6). On the back, where the...

2009年12月8日 · it needs to be sonic checked before going over .060 to make sure you have enough material so the cylinders wont distort. that said a .060 454 would be 468 CI so going .090 would be 474 not 445 if you go .100 over would be 476 and if you go .125 would be 481. this all is with a 4.0 stroke if you go to a 4.250 stroke the CI becomes larger IE. .090 witch is a 4.340 …

2008年2月3日 · 454 Small Block nice sleeper, looks like a 307 Top of the line parts. 572 Big Block Better sleeper, looks like a 396 Middle of the road parts. Tiebreaker..... WOW Factor for Big Block. Ask any die hard big block gearhead.

2006年11月2日 · I have a couple questions about production 454 blocks, and which would be "best" to use as a high performance builder. I have an '87 454 2 bolt block that I can use for this application. How is the quality control of a later block such as my '87, compared to say a 70-71 454? I mean things like core shift, nickel content, etc.

2008年5月12日 · Mild 454 (461) in a '69 Chevelle as a daily driver. Isky 270 cam, high-rise intake, headers, GM HEI, Edelbrock AVS 650 cfm carb.

2005年9月3日 · Eric Christie Houston Chevelle Club 1965 El Camino - Undergoing frame off resto, build thread (2011- 1970 SS 496 - Cortez Silver, black stripes, black int, forged bottom end, ported 781s, Eddy Air Gap, ProSystem carb, Lunati cam & rockers, Sanderson headers, Vintage Air Front runner, Century Transmission - 200R4, 12 bolt, 3.42s

2022年8月10日 · I'm wanting to put together a 454 big block Chevy with lower compression ratio that way I can do a little bit of boost with a Roots blower. I'm not trying to make huge horsepower I'm just wanting to have a fun cruiser. I was wondering if 7.5 to 1 or maybe 8.0 to 1 compression ratio is too low...

2012年7月22日 · Casting Number Mains Deck Height Year 454 7.4 Blocks #315014 2 or 4 Bolt 9.8 70-86 #346236 2-Bolt 9.8 75-76 #359070 2 or 4 Bolt 9.8 70-90 #361959 2 or 4 Bolt 9.8 73-90 #399289 2 or 4 Bolt 9.8 73-90 #3963512 2 or 4 Bolt 9.8 70-76 #3999289 2 or 4 Bolt 9.8 72-79 #10051107 Bowtie Block 9.8 up to 4.495 bore #10068286 4-Bolt 9.8 90-91

2023年1月25日 · Hey guys I’m new to this engine building scene and would really like to get into it. I have a shop class I go to currently and am building a 454. The specs are Bored .30 over 244/244 hydraulic flat tappet cam magnum 781 heads stock upgraded valve springs Weiand oval port intake Holley...